21142290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2357}}^1$

素因数の和:2403

約数の個数: 64

約数和(自身を含む): 57044736

約数和(自身を除く): 35902446

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2357, 2990, 4485, 4714, 7071, 8970, 11785, 14142, 23570, 30641, 35355, 54211, 61282, 70710, 91923, 108422, 153205, 162633, 183846, 271055, 306410, 325266, 459615, 542110, 704743, 813165, 919230, 1409486, 1626330, 2114229, 3523715, 4228458, 7047430, 10571145, 21142290]

約数ペア:

[(1, 21142290), (2, 10571145), (3, 7047430), (5, 4228458), (6, 3523715), (10, 2114229), (13, 1626330), (15, 1409486), (23, 919230), (26, 813165), (30, 704743), (39, 542110), (46, 459615), (65, 325266), (69, 306410), (78, 271055), (115, 183846), (130, 162633), (138, 153205), (195, 108422), (230, 91923), (299, 70710), (345, 61282), (390, 54211), (598, 35355), (690, 30641), (897, 23570), (1495, 14142), (1794, 11785), (2357, 8970), (2990, 7071), (4485, 4714)]