20832968

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 44578800

約数和(自身を除く): 23745832

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 169, 247, 338, 494, 676, 811, 988, 1352, 1622, 1976, 3211, 3244, 6422, 6488, 10543, 12844, 15409, 21086, 25688, 30818, 42172, 61636, 84344, 123272, 137059, 200317, 274118, 400634, 548236, 801268, 1096472, 1602536, 2604121, 5208242, 10416484, 20832968]

約数ペア:

[(1, 20832968), (2, 10416484), (4, 5208242), (8, 2604121), (13, 1602536), (19, 1096472), (26, 801268), (38, 548236), (52, 400634), (76, 274118), (104, 200317), (152, 137059), (169, 123272), (247, 84344), (338, 61636), (494, 42172), (676, 30818), (811, 25688), (988, 21086), (1352, 15409), (1622, 12844), (1976, 10543), (3211, 6488), (3244, 6422)]