21540885

素因数分解:

$3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{6271}}^1$

素因数の和:6508

約数の個数: 16

約数和(自身を含む): 34621440

約数和(自身を除く): 13080555

約数列:

[1, 3, 5, 15, 229, 687, 1145, 3435, 6271, 18813, 31355, 94065, 1436059, 4308177, 7180295, 21540885]

約数ペア:

[(1, 21540885), (3, 7180295), (5, 4308177), (15, 1436059), (229, 94065), (687, 31355), (1145, 18813), (3435, 6271)]