21152777

素因数分解:

${\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{1381}}^1$

素因数の和:1468

約数の個数: 12

約数和(自身を含む): 22910796

約数和(自身を除く): 1758019

約数列:

[1, 17, 53, 289, 901, 1381, 15317, 23477, 73193, 399109, 1244281, 21152777]

約数ペア:

[(1, 21152777), (17, 1244281), (53, 399109), (289, 73193), (901, 23477), (1381, 15317)]