20513754

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 46475520

約数和(自身を除く): 25961766

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 97, 186, 194, 279, 291, 379, 558, 582, 758, 873, 1137, 1746, 2274, 3007, 3411, 6014, 6822, 9021, 11749, 18042, 23498, 27063, 35247, 36763, 54126, 70494, 73526, 105741, 110289, 211482, 220578, 330867, 661734, 1139653, 2279306, 3418959, 6837918, 10256877, 20513754]

約数ペア:

[(1, 20513754), (2, 10256877), (3, 6837918), (6, 3418959), (9, 2279306), (18, 1139653), (31, 661734), (62, 330867), (93, 220578), (97, 211482), (186, 110289), (194, 105741), (279, 73526), (291, 70494), (379, 54126), (558, 36763), (582, 35247), (758, 27063), (873, 23498), (1137, 18042), (1746, 11749), (2274, 9021), (3007, 6822), (3411, 6014)]