20269424

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1321}}^1$

素因数の和:1473

約数の個数: 40

約数和(自身を含む): 45244128

約数和(自身を除く): 24974704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1321, 1918, 2192, 2642, 3836, 5284, 7672, 9247, 10568, 15344, 18494, 21136, 36988, 73976, 147952, 180977, 361954, 723908, 1266839, 1447816, 2533678, 2895632, 5067356, 10134712, 20269424]

約数ペア:

[(1, 20269424), (2, 10134712), (4, 5067356), (7, 2895632), (8, 2533678), (14, 1447816), (16, 1266839), (28, 723908), (56, 361954), (112, 180977), (137, 147952), (274, 73976), (548, 36988), (959, 21136), (1096, 18494), (1321, 15344), (1918, 10568), (2192, 9247), (2642, 7672), (3836, 5284)]