19777734431

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 28108394496

約数和(自身を除く): 8330660065

約数列:

[1, 7, 13, 17, 23, 37, 83, 91, 119, 161, 181, 221, 259, 299, 391, 481, 581, 629, 851, 1079, 1267, 1411, 1547, 1909, 2093, 2353, 2737, 3071, 3077, 3367, 4163, 4403, 5083, 5957, 6697, 7553, 8177, 9877, 11063, 13363, 14467, 15023, 16471, 18343, 21497, 21539, 24817, 29141, 32453, 35581, 39923, 40001, 46879, 52207, 54119, 57239, 70633, 70771, 77441, 87061, 101269, 105161, 113849, 128401, 154031, 173719, 188071, 195299, 227171, 255391, 279461, 280007, 345529, 365449, 378833, 421889, 494431, 495397, 555851, 609427, 678691, 796943, 918229, 920023, 1078217, 1200761, 1316497, 1367093, 1480037, 1787737, 2002403, 2418703, 2618527, 2953223, 3320083, 3890957, 4491877, 4750837, 5873993, 6427603, 6440161, 7226063, 8405327, 9449467, 10360259, 12784573, 14016821, 15609893, 18329689, 23240581, 31443139, 34040851, 41117951, 50582441, 66146269, 76361909, 89492011, 109269251, 122843071, 166199449, 217337741, 238285957, 534533363, 859901497, 1163396143, 1521364187, 2825390633, 19777734431]

約数ペア:

[(1, 19777734431), (7, 2825390633), (13, 1521364187), (17, 1163396143), (23, 859901497), (37, 534533363), (83, 238285957), (91, 217337741), (119, 166199449), (161, 122843071), (181, 109269251), (221, 89492011), (259, 76361909), (299, 66146269), (391, 50582441), (481, 41117951), (581, 34040851), (629, 31443139), (851, 23240581), (1079, 18329689), (1267, 15609893), (1411, 14016821), (1547, 12784573), (1909, 10360259), (2093, 9449467), (2353, 8405327), (2737, 7226063), (3071, 6440161), (3077, 6427603), (3367, 5873993), (4163, 4750837), (4403, 4491877), (5083, 3890957), (5957, 3320083), (6697, 2953223), (7553, 2618527), (8177, 2418703), (9877, 2002403), (11063, 1787737), (13363, 1480037), (14467, 1367093), (15023, 1316497), (16471, 1200761), (18343, 1078217), (21497, 920023), (21539, 918229), (24817, 796943), (29141, 678691), (32453, 609427), (35581, 555851), (39923, 495397), (40001, 494431), (46879, 421889), (52207, 378833), (54119, 365449), (57239, 345529), (70633, 280007), (70771, 279461), (77441, 255391), (87061, 227171), (101269, 195299), (105161, 188071), (113849, 173719), (128401, 154031)]