21238335430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1\times {\mathrm{7687}}^1$

素因数の和:8161

約数の個数: 64

約数和(自身を含む): 42056558208

約数和(自身を除く): 20818222778

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 401, 530, 689, 802, 1378, 2005, 3445, 4010, 5213, 6890, 7687, 10426, 15374, 21253, 26065, 38435, 42506, 52130, 76870, 99931, 106265, 199862, 212530, 276289, 407411, 499655, 552578, 814822, 999310, 1381445, 2037055, 2762890, 3082487, 4074110, 5296343, 6164974, 10592686, 15412435, 26481715, 30824870, 40072331, 52963430, 80144662, 163371811, 200361655, 326743622, 400723310, 816859055, 1633718110, 2123833543, 4247667086, 10619167715, 21238335430]

約数ペア:

[(1, 21238335430), (2, 10619167715), (5, 4247667086), (10, 2123833543), (13, 1633718110), (26, 816859055), (53, 400723310), (65, 326743622), (106, 200361655), (130, 163371811), (265, 80144662), (401, 52963430), (530, 40072331), (689, 30824870), (802, 26481715), (1378, 15412435), (2005, 10592686), (3445, 6164974), (4010, 5296343), (5213, 4074110), (6890, 3082487), (7687, 2762890), (10426, 2037055), (15374, 1381445), (21253, 999310), (26065, 814822), (38435, 552578), (42506, 499655), (52130, 407411), (76870, 276289), (99931, 212530), (106265, 199862)]