20965308

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:363

約数の個数: 96

約数和(自身を含む): 61264896

約数和(自身を除く): 40299588

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 73, 78, 84, 91, 146, 156, 182, 219, 263, 273, 292, 364, 438, 511, 526, 546, 789, 876, 949, 1022, 1052, 1092, 1533, 1578, 1841, 1898, 2044, 2847, 3066, 3156, 3419, 3682, 3796, 5523, 5694, 6132, 6643, 6838, 7364, 10257, 11046, 11388, 13286, 13676, 19199, 19929, 20514, 22092, 23933, 26572, 38398, 39858, 41028, 47866, 57597, 71799, 76796, 79716, 95732, 115194, 134393, 143598, 230388, 249587, 268786, 287196, 403179, 499174, 537572, 748761, 806358, 998348, 1497522, 1612716, 1747109, 2995044, 3494218, 5241327, 6988436, 10482654, 20965308]

約数ペア:

[(1, 20965308), (2, 10482654), (3, 6988436), (4, 5241327), (6, 3494218), (7, 2995044), (12, 1747109), (13, 1612716), (14, 1497522), (21, 998348), (26, 806358), (28, 748761), (39, 537572), (42, 499174), (52, 403179), (73, 287196), (78, 268786), (84, 249587), (91, 230388), (146, 143598), (156, 134393), (182, 115194), (219, 95732), (263, 79716), (273, 76796), (292, 71799), (364, 57597), (438, 47866), (511, 41028), (526, 39858), (546, 38398), (789, 26572), (876, 23933), (949, 22092), (1022, 20514), (1052, 19929), (1092, 19199), (1533, 13676), (1578, 13286), (1841, 11388), (1898, 11046), (2044, 10257), (2847, 7364), (3066, 6838), (3156, 6643), (3419, 6132), (3682, 5694), (3796, 5523)]