17638677

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 32438016

約数和(自身を除く): 14799339

約数列:

[1, 3, 7, 9, 21, 23, 37, 47, 49, 63, 69, 111, 141, 147, 161, 207, 259, 329, 333, 423, 441, 483, 777, 851, 987, 1081, 1127, 1449, 1739, 1813, 2303, 2331, 2553, 2961, 3243, 3381, 5217, 5439, 5957, 6909, 7567, 7659, 9729, 10143, 12173, 15651, 16317, 17871, 20727, 22701, 36519, 39997, 41699, 52969, 53613, 68103, 85211, 109557, 119991, 125097, 158907, 255633, 279979, 359973, 375291, 476721, 766899, 839937, 1959853, 2519811, 5879559, 17638677]

約数ペア:

[(1, 17638677), (3, 5879559), (7, 2519811), (9, 1959853), (21, 839937), (23, 766899), (37, 476721), (47, 375291), (49, 359973), (63, 279979), (69, 255633), (111, 158907), (141, 125097), (147, 119991), (161, 109557), (207, 85211), (259, 68103), (329, 53613), (333, 52969), (423, 41699), (441, 39997), (483, 36519), (777, 22701), (851, 20727), (987, 17871), (1081, 16317), (1127, 15651), (1449, 12173), (1739, 10143), (1813, 9729), (2303, 7659), (2331, 7567), (2553, 6909), (2961, 5957), (3243, 5439), (3381, 5217)]