21566925

素因数分解:

$3^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 40176000

約数和(自身を除く): 18609075

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 89, 135, 225, 267, 359, 445, 675, 801, 1077, 1335, 1795, 2225, 2403, 3231, 4005, 5385, 6675, 8975, 9693, 12015, 16155, 20025, 26925, 31951, 48465, 60075, 80775, 95853, 159755, 242325, 287559, 479265, 798775, 862677, 1437795, 2396325, 4313385, 7188975, 21566925]

約数ペア:

[(1, 21566925), (3, 7188975), (5, 4313385), (9, 2396325), (15, 1437795), (25, 862677), (27, 798775), (45, 479265), (75, 287559), (89, 242325), (135, 159755), (225, 95853), (267, 80775), (359, 60075), (445, 48465), (675, 31951), (801, 26925), (1077, 20025), (1335, 16155), (1795, 12015), (2225, 9693), (2403, 8975), (3231, 6675), (4005, 5385)]