21284042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26407}}^1$

素因数の和:26453

約数の個数: 16

約数和(自身を含む): 35492352

約数和(自身を除く): 14208310

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 26407, 52814, 343291, 686582, 818617, 1637234, 10642021, 21284042]

約数ペア:

[(1, 21284042), (2, 10642021), (13, 1637234), (26, 818617), (31, 686582), (62, 343291), (403, 52814), (806, 26407)]