21686144

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 46899600

約数和(自身を除く): 25213456

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 64, 74, 76, 128, 148, 152, 241, 296, 304, 482, 592, 608, 703, 964, 1184, 1216, 1406, 1928, 2368, 2432, 2812, 3856, 4579, 4736, 5624, 7712, 8917, 9158, 11248, 15424, 17834, 18316, 22496, 30848, 35668, 36632, 44992, 71336, 73264, 89984, 142672, 146528, 169423, 285344, 293056, 338846, 570688, 586112, 677692, 1141376, 1355384, 2710768, 5421536, 10843072, 21686144]

約数ペア:

[(1, 21686144), (2, 10843072), (4, 5421536), (8, 2710768), (16, 1355384), (19, 1141376), (32, 677692), (37, 586112), (38, 570688), (64, 338846), (74, 293056), (76, 285344), (128, 169423), (148, 146528), (152, 142672), (241, 89984), (296, 73264), (304, 71336), (482, 44992), (592, 36632), (608, 35668), (703, 30848), (964, 22496), (1184, 18316), (1216, 17834), (1406, 15424), (1928, 11248), (2368, 9158), (2432, 8917), (2812, 7712), (3856, 5624), (4579, 4736)]