21454758

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{331}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 50393616

約数和(自身を除く): 28938858

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 277, 331, 554, 662, 831, 993, 1662, 1986, 2493, 2979, 3601, 4303, 4986, 5958, 7202, 8606, 10803, 12909, 21606, 25818, 32409, 38727, 64818, 77454, 91687, 183374, 275061, 550122, 825183, 1191931, 1650366, 2383862, 3575793, 7151586, 10727379, 21454758]

約数ペア:

[(1, 21454758), (2, 10727379), (3, 7151586), (6, 3575793), (9, 2383862), (13, 1650366), (18, 1191931), (26, 825183), (39, 550122), (78, 275061), (117, 183374), (234, 91687), (277, 77454), (331, 64818), (554, 38727), (662, 32409), (831, 25818), (993, 21606), (1662, 12909), (1986, 10803), (2493, 8606), (2979, 7202), (3601, 5958), (4303, 4986)]