721432179

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{9803}}^1$

素因数の和:9876

約数の個数: 48

約数和(自身を含む): 1220480352

約数和(自身を除く): 499048173

約数列:

[1, 3, 9, 13, 17, 37, 39, 51, 111, 117, 153, 221, 333, 481, 629, 663, 1443, 1887, 1989, 4329, 5661, 8177, 9803, 24531, 29409, 73593, 88227, 127439, 166651, 362711, 382317, 499953, 1088133, 1146951, 1499859, 2166463, 3264399, 4715243, 6166087, 6499389, 14145729, 18498261, 19498167, 42437187, 55494783, 80159131, 240477393, 721432179]

約数ペア:

[(1, 721432179), (3, 240477393), (9, 80159131), (13, 55494783), (17, 42437187), (37, 19498167), (39, 18498261), (51, 14145729), (111, 6499389), (117, 6166087), (153, 4715243), (221, 3264399), (333, 2166463), (481, 1499859), (629, 1146951), (663, 1088133), (1443, 499953), (1887, 382317), (1989, 362711), (4329, 166651), (5661, 127439), (8177, 88227), (9803, 73593), (24531, 29409)]