21802544

素因数分解:

$2^4\times {\mathrm{1091}}^1\times {\mathrm{1249}}^1$

素因数の和:2348

約数の個数: 20

約数和(自身を含む): 42315000

約数和(自身を除く): 20512456

約数列:

[1, 2, 4, 8, 16, 1091, 1249, 2182, 2498, 4364, 4996, 8728, 9992, 17456, 19984, 1362659, 2725318, 5450636, 10901272, 21802544]

約数ペア:

[(1, 21802544), (2, 10901272), (4, 5450636), (8, 2725318), (16, 1362659), (1091, 19984), (1249, 17456), (2182, 9992), (2498, 8728), (4364, 4996)]