21453065

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3767}}^1$

素因数の和:3856

約数の個数: 16

約数和(自身を含む): 27672192

約数和(自身を除く): 6219127

約数列:

[1, 5, 17, 67, 85, 335, 1139, 3767, 5695, 18835, 64039, 252389, 320195, 1261945, 4290613, 21453065]

約数ペア:

[(1, 21453065), (5, 4290613), (17, 1261945), (67, 320195), (85, 252389), (335, 64039), (1139, 18835), (3767, 5695)]