21152638

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19843}}^1$

素因数の和:19899

約数の個数: 16

約数和(自身を含む): 35004816

約数和(自身を除く): 13852178

約数列:

[1, 2, 13, 26, 41, 82, 533, 1066, 19843, 39686, 257959, 515918, 813563, 1627126, 10576319, 21152638]

約数ペア:

[(1, 21152638), (2, 10576319), (13, 1627126), (26, 813563), (41, 515918), (82, 257959), (533, 39686), (1066, 19843)]