21493678

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{7103}}^1$

素因数の和:7211

約数の個数: 16

約数和(自身を含む): 34525440

約数和(自身を除く): 13031762

約数列:

[1, 2, 17, 34, 89, 178, 1513, 3026, 7103, 14206, 120751, 241502, 632167, 1264334, 10746839, 21493678]

約数ペア:

[(1, 21493678), (2, 10746839), (17, 1264334), (34, 632167), (89, 241502), (178, 120751), (1513, 14206), (3026, 7103)]