21489327

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{15017}}^1$

素因数の和:15079

約数の個数: 16

約数和(自身を含む): 32438880

約数和(自身を除く): 10949553

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 15017, 45051, 135153, 405459, 795901, 2387703, 7163109, 21489327]

約数ペア:

[(1, 21489327), (3, 7163109), (9, 2387703), (27, 795901), (53, 405459), (159, 135153), (477, 45051), (1431, 15017)]