20996430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7691}}^1$

素因数の和:7721

約数の個数: 64

約数和(自身を含む): 62028288

約数和(自身を除く): 41031858

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7691, 15382, 23073, 38455, 46146, 53837, 76910, 99983, 107674, 115365, 161511, 199966, 230730, 269185, 299949, 323022, 499915, 538370, 599898, 699881, 807555, 999830, 1399762, 1499745, 1615110, 2099643, 2999490, 3499405, 4199286, 6998810, 10498215, 20996430]

約数ペア:

[(1, 20996430), (2, 10498215), (3, 6998810), (5, 4199286), (6, 3499405), (7, 2999490), (10, 2099643), (13, 1615110), (14, 1499745), (15, 1399762), (21, 999830), (26, 807555), (30, 699881), (35, 599898), (39, 538370), (42, 499915), (65, 323022), (70, 299949), (78, 269185), (91, 230730), (105, 199966), (130, 161511), (182, 115365), (195, 107674), (210, 99983), (273, 76910), (390, 53837), (455, 46146), (546, 38455), (910, 23073), (1365, 15382), (2730, 7691)]