51273999

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3821}}^1$

素因数の和:3908

約数の個数: 32

約数和(自身を含む): 88058880

約数和(自身を除く): 36784881

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1917, 3821, 4473, 11463, 13419, 26747, 34389, 80241, 103167, 240723, 271291, 722169, 813873, 1899037, 2441619, 5697111, 7324857, 17091333, 51273999]

約数ペア:

[(1, 51273999), (3, 17091333), (7, 7324857), (9, 5697111), (21, 2441619), (27, 1899037), (63, 813873), (71, 722169), (189, 271291), (213, 240723), (497, 103167), (639, 80241), (1491, 34389), (1917, 26747), (3821, 13419), (4473, 11463)]