21988438634

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1\times {\mathrm{2843}}^1$

素因数の和:3674

約数の個数: 32

約数和(自身を含む): 34057013760

約数和(自身を除く): 12068575126

約数列:

[1, 2, 43, 86, 139, 278, 647, 1294, 2843, 5686, 5977, 11954, 27821, 55642, 89933, 122249, 179866, 244498, 395177, 790354, 1839421, 3678842, 3867119, 7734238, 16992611, 33985222, 79095103, 158190206, 255679519, 511359038, 10994219317, 21988438634]

約数ペア:

[(1, 21988438634), (2, 10994219317), (43, 511359038), (86, 255679519), (139, 158190206), (278, 79095103), (647, 33985222), (1294, 16992611), (2843, 7734238), (5686, 3867119), (5977, 3678842), (11954, 1839421), (27821, 790354), (55642, 395177), (89933, 244498), (122249, 179866)]