20972458

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2063}}^1$

素因数の和:2118

約数の個数: 32

約数和(自身を含む): 37449216

約数和(自身を除く): 16476758

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 221, 299, 391, 442, 598, 782, 2063, 4126, 5083, 10166, 26819, 35071, 47449, 53638, 70142, 94898, 455923, 616837, 806633, 911846, 1233674, 1613266, 10486229, 20972458]

約数ペア:

[(1, 20972458), (2, 10486229), (13, 1613266), (17, 1233674), (23, 911846), (26, 806633), (34, 616837), (46, 455923), (221, 94898), (299, 70142), (391, 53638), (442, 47449), (598, 35071), (782, 26819), (2063, 10166), (4126, 5083)]