12921940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6397}}^1$

素因数の和:6507

約数の個数: 24

約数和(自身を含む): 27409032

約数和(自身を除く): 14487092

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 6397, 12794, 25588, 31985, 63970, 127940, 646097, 1292194, 2584388, 3230485, 6460970, 12921940]

約数ペア:

[(1, 12921940), (2, 6460970), (4, 3230485), (5, 2584388), (10, 1292194), (20, 646097), (101, 127940), (202, 63970), (404, 31985), (505, 25588), (1010, 12794), (2020, 6397)]