19617728

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:134

約数の個数: 112

約数和(自身を含む): 47365920

約数和(自身を除く): 27748192

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 32, 34, 38, 52, 64, 68, 73, 76, 104, 136, 146, 152, 208, 221, 247, 272, 292, 304, 323, 416, 442, 494, 544, 584, 608, 646, 832, 884, 949, 988, 1088, 1168, 1216, 1241, 1292, 1387, 1768, 1898, 1976, 2336, 2482, 2584, 2774, 3536, 3796, 3952, 4199, 4672, 4964, 5168, 5548, 7072, 7592, 7904, 8398, 9928, 10336, 11096, 14144, 15184, 15808, 16133, 16796, 18031, 19856, 20672, 22192, 23579, 30368, 32266, 33592, 36062, 39712, 44384, 47158, 60736, 64532, 67184, 72124, 79424, 88768, 94316, 129064, 134368, 144248, 188632, 258128, 268736, 288496, 306527, 377264, 516256, 576992, 613054, 754528, 1032512, 1153984, 1226108, 1509056, 2452216, 4904432, 9808864, 19617728]

約数ペア:

[(1, 19617728), (2, 9808864), (4, 4904432), (8, 2452216), (13, 1509056), (16, 1226108), (17, 1153984), (19, 1032512), (26, 754528), (32, 613054), (34, 576992), (38, 516256), (52, 377264), (64, 306527), (68, 288496), (73, 268736), (76, 258128), (104, 188632), (136, 144248), (146, 134368), (152, 129064), (208, 94316), (221, 88768), (247, 79424), (272, 72124), (292, 67184), (304, 64532), (323, 60736), (416, 47158), (442, 44384), (494, 39712), (544, 36062), (584, 33592), (608, 32266), (646, 30368), (832, 23579), (884, 22192), (949, 20672), (988, 19856), (1088, 18031), (1168, 16796), (1216, 16133), (1241, 15808), (1292, 15184), (1387, 14144), (1768, 11096), (1898, 10336), (1976, 9928), (2336, 8398), (2482, 7904), (2584, 7592), (2774, 7072), (3536, 5548), (3796, 5168), (3952, 4964), (4199, 4672)]