21582470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 49182336

約数和(自身を除く): 27599866

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 65, 70, 74, 91, 130, 182, 185, 259, 370, 455, 481, 518, 641, 910, 962, 1282, 1295, 2405, 2590, 3205, 3367, 4487, 4810, 6410, 6734, 8333, 8974, 16666, 16835, 22435, 23717, 33670, 41665, 44870, 47434, 58331, 83330, 116662, 118585, 166019, 237170, 291655, 308321, 332038, 583310, 616642, 830095, 1541605, 1660190, 2158247, 3083210, 4316494, 10791235, 21582470]

約数ペア:

[(1, 21582470), (2, 10791235), (5, 4316494), (7, 3083210), (10, 2158247), (13, 1660190), (14, 1541605), (26, 830095), (35, 616642), (37, 583310), (65, 332038), (70, 308321), (74, 291655), (91, 237170), (130, 166019), (182, 118585), (185, 116662), (259, 83330), (370, 58331), (455, 47434), (481, 44870), (518, 41665), (641, 33670), (910, 23717), (962, 22435), (1282, 16835), (1295, 16666), (2405, 8974), (2590, 8333), (3205, 6734), (3367, 6410), (4487, 4810)]