21902420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8623}}^1$

素因数の和:8759

約数の個数: 24

約数和(自身を含む): 46362624

約数和(自身を除く): 24460204

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 8623, 17246, 34492, 43115, 86230, 172460, 1095121, 2190242, 4380484, 5475605, 10951210, 21902420]

約数ペア:

[(1, 21902420), (2, 10951210), (4, 5475605), (5, 4380484), (10, 2190242), (20, 1095121), (127, 172460), (254, 86230), (508, 43115), (635, 34492), (1270, 17246), (2540, 8623)]