21591424

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 45581760

約数和(自身を除く): 23990336

約数列:

[1, 2, 4, 8, 16, 32, 37, 47, 64, 74, 94, 97, 128, 148, 188, 194, 296, 376, 388, 592, 752, 776, 1184, 1504, 1552, 1739, 2368, 3008, 3104, 3478, 3589, 4559, 4736, 6016, 6208, 6956, 7178, 9118, 12416, 13912, 14356, 18236, 27824, 28712, 36472, 55648, 57424, 72944, 111296, 114848, 145888, 168683, 222592, 229696, 291776, 337366, 459392, 583552, 674732, 1349464, 2698928, 5397856, 10795712, 21591424]

約数ペア:

[(1, 21591424), (2, 10795712), (4, 5397856), (8, 2698928), (16, 1349464), (32, 674732), (37, 583552), (47, 459392), (64, 337366), (74, 291776), (94, 229696), (97, 222592), (128, 168683), (148, 145888), (188, 114848), (194, 111296), (296, 72944), (376, 57424), (388, 55648), (592, 36472), (752, 28712), (776, 27824), (1184, 18236), (1504, 14356), (1552, 13912), (1739, 12416), (2368, 9118), (3008, 7178), (3104, 6956), (3478, 6208), (3589, 6016), (4559, 4736)]