20183120139

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{555871}}^1$

素因数の和:555920

約数の個数: 48

約数和(自身を含む): 35486868480

約数和(自身を除く): 15303748341

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 637, 741, 931, 1729, 1911, 2793, 5187, 12103, 36309, 555871, 1667613, 3891097, 7226323, 10561549, 11673291, 21678969, 27237679, 31684647, 50584261, 73930843, 81713037, 137300137, 151752783, 221792529, 354089827, 411900411, 517515901, 961100959, 1062269481, 1552547703, 2883302877, 6727706713, 20183120139]

約数ペア:

[(1, 20183120139), (3, 6727706713), (7, 2883302877), (13, 1552547703), (19, 1062269481), (21, 961100959), (39, 517515901), (49, 411900411), (57, 354089827), (91, 221792529), (133, 151752783), (147, 137300137), (247, 81713037), (273, 73930843), (399, 50584261), (637, 31684647), (741, 27237679), (931, 21678969), (1729, 11673291), (1911, 10561549), (2793, 7226323), (5187, 3891097), (12103, 1667613), (36309, 555871)]