211221213

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{62473}}^1$

素因数の和:62513

約数の個数: 24

約数和(自身を含む): 341857728

約数和(自身を除く): 130636515

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 62473, 187419, 437311, 1311933, 1436879, 3061177, 4310637, 9183531, 10058153, 30174459, 70407071, 211221213]

約数ペア:

[(1, 211221213), (3, 70407071), (7, 30174459), (21, 10058153), (23, 9183531), (49, 4310637), (69, 3061177), (147, 1436879), (161, 1311933), (483, 437311), (1127, 187419), (3381, 62473)]