27931428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{409}}^1$

素因数の和:697

約数の個数: 72

約数和(自身を含む): 81186560

約数和(自身を除く): 53255132

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 271, 409, 542, 813, 818, 1084, 1227, 1626, 1636, 1897, 2439, 2454, 2863, 3252, 3681, 3794, 4878, 4908, 5691, 5726, 7362, 7588, 8589, 9756, 11382, 11452, 14724, 17073, 17178, 22764, 25767, 34146, 34356, 51534, 68292, 103068, 110839, 221678, 332517, 443356, 665034, 775873, 997551, 1330068, 1551746, 1995102, 2327619, 3103492, 3990204, 4655238, 6982857, 9310476, 13965714, 27931428]

約数ペア:

[(1, 27931428), (2, 13965714), (3, 9310476), (4, 6982857), (6, 4655238), (7, 3990204), (9, 3103492), (12, 2327619), (14, 1995102), (18, 1551746), (21, 1330068), (28, 997551), (36, 775873), (42, 665034), (63, 443356), (84, 332517), (126, 221678), (252, 110839), (271, 103068), (409, 68292), (542, 51534), (813, 34356), (818, 34146), (1084, 25767), (1227, 22764), (1626, 17178), (1636, 17073), (1897, 14724), (2439, 11452), (2454, 11382), (2863, 9756), (3252, 8589), (3681, 7588), (3794, 7362), (4878, 5726), (4908, 5691)]