21885975

素因数分解:

$3^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:688

約数の個数: 36

約数和(自身を含む): 39471432

約数和(自身を除く): 17585457

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 211, 225, 461, 633, 1055, 1383, 1899, 2305, 3165, 4149, 5275, 6915, 9495, 11525, 15825, 20745, 34575, 47475, 97271, 103725, 291813, 486355, 875439, 1459065, 2431775, 4377195, 7295325, 21885975]

約数ペア:

[(1, 21885975), (3, 7295325), (5, 4377195), (9, 2431775), (15, 1459065), (25, 875439), (45, 486355), (75, 291813), (211, 103725), (225, 97271), (461, 47475), (633, 34575), (1055, 20745), (1383, 15825), (1899, 11525), (2305, 9495), (3165, 6915), (4149, 5275)]