21502406

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2\times {\mathrm{157}}^1$

素因数の和:284

約数の個数: 24

約数和(自身を含む): 34234176

約数和(自身を除く): 12731770

約数列:

[1, 2, 31, 47, 62, 94, 157, 314, 1457, 2209, 2914, 4418, 4867, 7379, 9734, 14758, 68479, 136958, 228749, 346813, 457498, 693626, 10751203, 21502406]

約数ペア:

[(1, 21502406), (2, 10751203), (31, 693626), (47, 457498), (62, 346813), (94, 228749), (157, 136958), (314, 68479), (1457, 14758), (2209, 9734), (2914, 7379), (4418, 4867)]