21501870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4241}}^1$

素因数の和:4277

約数の個数: 48

約数和(自身を含む): 55892592

約数和(自身を除く): 34390722

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 169, 195, 338, 390, 507, 845, 1014, 1690, 2535, 4241, 5070, 8482, 12723, 21205, 25446, 42410, 55133, 63615, 110266, 127230, 165399, 275665, 330798, 551330, 716729, 826995, 1433458, 1653990, 2150187, 3583645, 4300374, 7167290, 10750935, 21501870]

約数ペア:

[(1, 21501870), (2, 10750935), (3, 7167290), (5, 4300374), (6, 3583645), (10, 2150187), (13, 1653990), (15, 1433458), (26, 826995), (30, 716729), (39, 551330), (65, 330798), (78, 275665), (130, 165399), (169, 127230), (195, 110266), (338, 63615), (390, 55133), (507, 42410), (845, 25446), (1014, 21205), (1690, 12723), (2535, 8482), (4241, 5070)]