21782205

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9133}}^1$

素因数の和:9197

約数の個数: 24

約数和(自身を含む): 38472408

約数和(自身を除く): 16690203

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 9133, 27399, 45665, 82197, 136995, 410985, 484049, 1452147, 2420245, 4356441, 7260735, 21782205]

約数ペア:

[(1, 21782205), (3, 7260735), (5, 4356441), (9, 2420245), (15, 1452147), (45, 484049), (53, 410985), (159, 136995), (265, 82197), (477, 45665), (795, 27399), (2385, 9133)]