21794110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 45505152

約数和(自身を除く): 23711042

約数列:

[1, 2, 5, 10, 13, 23, 26, 37, 46, 65, 74, 115, 130, 185, 197, 230, 299, 370, 394, 481, 598, 851, 962, 985, 1495, 1702, 1970, 2405, 2561, 2990, 4255, 4531, 4810, 5122, 7289, 8510, 9062, 11063, 12805, 14578, 22126, 22655, 25610, 36445, 45310, 55315, 58903, 72890, 94757, 110630, 117806, 167647, 189514, 294515, 335294, 473785, 589030, 838235, 947570, 1676470, 2179411, 4358822, 10897055, 21794110]

約数ペア:

[(1, 21794110), (2, 10897055), (5, 4358822), (10, 2179411), (13, 1676470), (23, 947570), (26, 838235), (37, 589030), (46, 473785), (65, 335294), (74, 294515), (115, 189514), (130, 167647), (185, 117806), (197, 110630), (230, 94757), (299, 72890), (370, 58903), (394, 55315), (481, 45310), (598, 36445), (851, 25610), (962, 22655), (985, 22126), (1495, 14578), (1702, 12805), (1970, 11063), (2405, 9062), (2561, 8510), (2990, 7289), (4255, 5122), (4531, 4810)]