20638544

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3299}}^1$

素因数の和:3347

約数の個数: 40

約数和(自身を含む): 44193600

約数和(自身を除く): 23555056

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 136, 184, 272, 368, 391, 782, 1564, 3128, 3299, 6256, 6598, 13196, 26392, 52784, 56083, 75877, 112166, 151754, 224332, 303508, 448664, 607016, 897328, 1214032, 1289909, 2579818, 5159636, 10319272, 20638544]

約数ペア:

[(1, 20638544), (2, 10319272), (4, 5159636), (8, 2579818), (16, 1289909), (17, 1214032), (23, 897328), (34, 607016), (46, 448664), (68, 303508), (92, 224332), (136, 151754), (184, 112166), (272, 75877), (368, 56083), (391, 52784), (782, 26392), (1564, 13196), (3128, 6598), (3299, 6256)]