21765272

素因数分解:

$2^3\times {\mathrm{787}}^1\times {\mathrm{3457}}^1$

素因数の和:4250

約数の個数: 16

約数和(自身を含む): 40873560

約数和(自身を除く): 19108288

約数列:

[1, 2, 4, 8, 787, 1574, 3148, 3457, 6296, 6914, 13828, 27656, 2720659, 5441318, 10882636, 21765272]

約数ペア:

[(1, 21765272), (2, 10882636), (4, 5441318), (8, 2720659), (787, 27656), (1574, 13828), (3148, 6914), (3457, 6296)]