31235385

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 51287040

約数和(自身を除く): 20051655

約数列:

[1, 3, 5, 15, 71, 139, 211, 213, 355, 417, 633, 695, 1055, 1065, 2085, 3165, 9869, 14981, 29329, 29607, 44943, 49345, 74905, 87987, 146645, 148035, 224715, 439935, 2082359, 6247077, 10411795, 31235385]

約数ペア:

[(1, 31235385), (3, 10411795), (5, 6247077), (15, 2082359), (71, 439935), (139, 224715), (211, 148035), (213, 146645), (355, 87987), (417, 74905), (633, 49345), (695, 44943), (1055, 29607), (1065, 29329), (2085, 14981), (3165, 9869)]