21074870

素因数分解:

$2^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{9203}}^1$

素因数の和:9439

約数の個数: 16

約数和(自身を含む): 38104560

約数和(自身を除く): 17029690

約数列:

[1, 2, 5, 10, 229, 458, 1145, 2290, 9203, 18406, 46015, 92030, 2107487, 4214974, 10537435, 21074870]

約数ペア:

[(1, 21074870), (2, 10537435), (5, 4214974), (10, 2107487), (229, 92030), (458, 46015), (1145, 18406), (2290, 9203)]