17721110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 37497600

約数和(自身を除く): 19776490

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 61, 95, 110, 122, 139, 190, 209, 278, 305, 418, 610, 671, 695, 1045, 1159, 1342, 1390, 1529, 2090, 2318, 2641, 3058, 3355, 5282, 5795, 6710, 7645, 8479, 11590, 12749, 13205, 15290, 16958, 25498, 26410, 29051, 42395, 58102, 63745, 84790, 93269, 127490, 145255, 161101, 186538, 290510, 322202, 466345, 805505, 932690, 1611010, 1772111, 3544222, 8860555, 17721110]

約数ペア:

[(1, 17721110), (2, 8860555), (5, 3544222), (10, 1772111), (11, 1611010), (19, 932690), (22, 805505), (38, 466345), (55, 322202), (61, 290510), (95, 186538), (110, 161101), (122, 145255), (139, 127490), (190, 93269), (209, 84790), (278, 63745), (305, 58102), (418, 42395), (610, 29051), (671, 26410), (695, 25498), (1045, 16958), (1159, 15290), (1342, 13205), (1390, 12749), (1529, 11590), (2090, 8479), (2318, 7645), (2641, 6710), (3058, 5795), (3355, 5282)]