21341901

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{3089}}^1$

素因数の和:3153

約数の個数: 24

約数和(自身を含む): 33816960

約数和(自身を除く): 12475059

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 3089, 6909, 9267, 21623, 64869, 145183, 151361, 435549, 454083, 1016281, 3048843, 7113967, 21341901]

約数ペア:

[(1, 21341901), (3, 7113967), (7, 3048843), (21, 1016281), (47, 454083), (49, 435549), (141, 151361), (147, 145183), (329, 64869), (987, 21623), (2303, 9267), (3089, 6909)]