28440489

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 50761728

約数和(自身を除く): 22321239

約数列:

[1, 3, 7, 11, 21, 23, 33, 53, 69, 77, 101, 159, 161, 231, 253, 303, 371, 483, 583, 707, 759, 1111, 1113, 1219, 1749, 1771, 2121, 2323, 3333, 3657, 4081, 5313, 5353, 6969, 7777, 8533, 12243, 13409, 16059, 16261, 23331, 25553, 25599, 37471, 40227, 48783, 58883, 76659, 93863, 112413, 123119, 176649, 178871, 281589, 369357, 412181, 536613, 861833, 1236543, 1354309, 2585499, 4062927, 9480163, 28440489]

約数ペア:

[(1, 28440489), (3, 9480163), (7, 4062927), (11, 2585499), (21, 1354309), (23, 1236543), (33, 861833), (53, 536613), (69, 412181), (77, 369357), (101, 281589), (159, 178871), (161, 176649), (231, 123119), (253, 112413), (303, 93863), (371, 76659), (483, 58883), (583, 48783), (707, 40227), (759, 37471), (1111, 25599), (1113, 25553), (1219, 23331), (1749, 16261), (1771, 16059), (2121, 13409), (2323, 12243), (3333, 8533), (3657, 7777), (4081, 6969), (5313, 5353)]