21443661

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{509}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 32248320

約数和(自身を除く): 10804659

約数列:

[1, 3, 9, 31, 93, 151, 279, 453, 509, 1359, 1527, 4581, 4681, 14043, 15779, 42129, 47337, 76859, 142011, 230577, 691731, 2382629, 7147887, 21443661]

約数ペア:

[(1, 21443661), (3, 7147887), (9, 2382629), (31, 691731), (93, 230577), (151, 142011), (279, 76859), (453, 47337), (509, 42129), (1359, 15779), (1527, 14043), (4581, 4681)]