19788075

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{2837}}^1$

素因数の和:2884

約数の個数: 36

約数和(自身を含む): 36598848

約数和(自身を除く): 16810773

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 279, 465, 775, 1395, 2325, 2837, 6975, 8511, 14185, 25533, 42555, 70925, 87947, 127665, 212775, 263841, 439735, 638325, 791523, 1319205, 2198675, 3957615, 6596025, 19788075]

約数ペア:

[(1, 19788075), (3, 6596025), (5, 3957615), (9, 2198675), (15, 1319205), (25, 791523), (31, 638325), (45, 439735), (75, 263841), (93, 212775), (155, 127665), (225, 87947), (279, 70925), (465, 42555), (775, 25533), (1395, 14185), (2325, 8511), (2837, 6975)]