21215438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{3119}}^1$

素因数の和:3319

約数の個数: 16

約数和(自身を含む): 33696000

約数和(自身を除く): 12480562

約数列:

[1, 2, 19, 38, 179, 358, 3119, 3401, 6238, 6802, 59261, 118522, 558301, 1116602, 10607719, 21215438]

約数ペア:

[(1, 21215438), (2, 10607719), (19, 1116602), (38, 558301), (179, 118522), (358, 59261), (3119, 6802), (3401, 6238)]