21293040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88721}}^1$

素因数の和:88737

約数の個数: 40

約数和(自身を含む): 66009168

約数和(自身を除く): 44716128

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88721, 177442, 266163, 354884, 443605, 532326, 709768, 887210, 1064652, 1330815, 1419536, 1774420, 2129304, 2661630, 3548840, 4258608, 5323260, 7097680, 10646520, 21293040]

約数ペア:

[(1, 21293040), (2, 10646520), (3, 7097680), (4, 5323260), (5, 4258608), (6, 3548840), (8, 2661630), (10, 2129304), (12, 1774420), (15, 1419536), (16, 1330815), (20, 1064652), (24, 887210), (30, 709768), (40, 532326), (48, 443605), (60, 354884), (80, 266163), (120, 177442), (240, 88721)]