21763575

素因数分解:

$3^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{491}}^1$

素因数の和:704

約数の個数: 36

約数和(自身を含む): 39258648

約数和(自身を除く): 17495073

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 197, 225, 491, 591, 985, 1473, 1773, 2455, 2955, 4419, 4925, 7365, 8865, 12275, 14775, 22095, 36825, 44325, 96727, 110475, 290181, 483635, 870543, 1450905, 2418175, 4352715, 7254525, 21763575]

約数ペア:

[(1, 21763575), (3, 7254525), (5, 4352715), (9, 2418175), (15, 1450905), (25, 870543), (45, 483635), (75, 290181), (197, 110475), (225, 96727), (491, 44325), (591, 36825), (985, 22095), (1473, 14775), (1773, 12275), (2455, 8865), (2955, 7365), (4419, 4925)]