21000606770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{863867}}^1$

素因数の和:863915

約数の個数: 64

約数和(自身を含む): 47022062976

約数和(自身を除く): 26021456206

約数列:

[1, 2, 5, 10, 11, 13, 17, 22, 26, 34, 55, 65, 85, 110, 130, 143, 170, 187, 221, 286, 374, 442, 715, 935, 1105, 1430, 1870, 2210, 2431, 4862, 12155, 24310, 863867, 1727734, 4319335, 8638670, 9502537, 11230271, 14685739, 19005074, 22460542, 29371478, 47512685, 56151355, 73428695, 95025370, 112302710, 123532981, 146857390, 161543129, 190914607, 247065962, 323086258, 381829214, 617664905, 807715645, 954573035, 1235329810, 1615431290, 1909146070, 2100060677, 4200121354, 10500303385, 21000606770]

約数ペア:

[(1, 21000606770), (2, 10500303385), (5, 4200121354), (10, 2100060677), (11, 1909146070), (13, 1615431290), (17, 1235329810), (22, 954573035), (26, 807715645), (34, 617664905), (55, 381829214), (65, 323086258), (85, 247065962), (110, 190914607), (130, 161543129), (143, 146857390), (170, 123532981), (187, 112302710), (221, 95025370), (286, 73428695), (374, 56151355), (442, 47512685), (715, 29371478), (935, 22460542), (1105, 19005074), (1430, 14685739), (1870, 11230271), (2210, 9502537), (2431, 8638670), (4862, 4319335), (12155, 1727734), (24310, 863867)]