216475777

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{277}}^1\times {\mathrm{389}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 259557480

約数和(自身を除く): 43081703

約数列:

[1, 7, 41, 49, 277, 287, 389, 1939, 2009, 2723, 11357, 13573, 15949, 19061, 79499, 107753, 111643, 556493, 754271, 781501, 4417873, 5279897, 30925111, 216475777]

約数ペア:

[(1, 216475777), (7, 30925111), (41, 5279897), (49, 4417873), (277, 781501), (287, 754271), (389, 556493), (1939, 111643), (2009, 107753), (2723, 79499), (11357, 19061), (13573, 15949)]