21739450

素因数分解:

$2^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{3319}}^1$

素因数の和:3462

約数の個数: 24

約数和(自身を含む): 40756320

約数和(自身を除く): 19016870

約数列:

[1, 2, 5, 10, 25, 50, 131, 262, 655, 1310, 3275, 3319, 6550, 6638, 16595, 33190, 82975, 165950, 434789, 869578, 2173945, 4347890, 10869725, 21739450]

約数ペア:

[(1, 21739450), (2, 10869725), (5, 4347890), (10, 2173945), (25, 869578), (50, 434789), (131, 165950), (262, 82975), (655, 33190), (1310, 16595), (3275, 6638), (3319, 6550)]