20338708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4951}}^1$

素因数の和:5047

約数の個数: 24

約数和(自身を含む): 38823680

約数和(自身を除く): 18484972

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4951, 9902, 19804, 64363, 128726, 257452, 391129, 782258, 1564516, 5084677, 10169354, 20338708]

約数ペア:

[(1, 20338708), (2, 10169354), (4, 5084677), (13, 1564516), (26, 782258), (52, 391129), (79, 257452), (158, 128726), (316, 64363), (1027, 19804), (2054, 9902), (4108, 4951)]