20996610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 52752384

約数和(自身を除く): 31755774

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 107, 155, 186, 211, 214, 310, 321, 422, 465, 535, 633, 642, 930, 1055, 1070, 1266, 1605, 2110, 3165, 3210, 3317, 6330, 6541, 6634, 9951, 13082, 16585, 19623, 19902, 22577, 32705, 33170, 39246, 45154, 49755, 65410, 67731, 98115, 99510, 112885, 135462, 196230, 225770, 338655, 677310, 699887, 1399774, 2099661, 3499435, 4199322, 6998870, 10498305, 20996610]

約数ペア:

[(1, 20996610), (2, 10498305), (3, 6998870), (5, 4199322), (6, 3499435), (10, 2099661), (15, 1399774), (30, 699887), (31, 677310), (62, 338655), (93, 225770), (107, 196230), (155, 135462), (186, 112885), (211, 99510), (214, 98115), (310, 67731), (321, 65410), (422, 49755), (465, 45154), (535, 39246), (633, 33170), (642, 32705), (930, 22577), (1055, 19902), (1070, 19623), (1266, 16585), (1605, 13082), (2110, 9951), (3165, 6634), (3210, 6541), (3317, 6330)]