21123758

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{1877}}^1$

素因数の和:2227

約数の個数: 16

約数和(自身を含む): 33668784

約数和(自身を除く): 12545026

約数列:

[1, 2, 17, 34, 331, 662, 1877, 3754, 5627, 11254, 31909, 63818, 621287, 1242574, 10561879, 21123758]

約数ペア:

[(1, 21123758), (2, 10561879), (17, 1242574), (34, 621287), (331, 63818), (662, 31909), (1877, 11254), (3754, 5627)]