21783684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{449}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 55036800

約数和(自身を除く): 33253116

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 311, 449, 622, 898, 933, 1244, 1347, 1796, 1866, 2694, 3732, 4043, 5388, 5837, 8086, 11674, 12129, 16172, 17511, 23348, 24258, 35022, 48516, 70044, 139639, 279278, 418917, 558556, 837834, 1675668, 1815307, 3630614, 5445921, 7261228, 10891842, 21783684]

約数ペア:

[(1, 21783684), (2, 10891842), (3, 7261228), (4, 5445921), (6, 3630614), (12, 1815307), (13, 1675668), (26, 837834), (39, 558556), (52, 418917), (78, 279278), (156, 139639), (311, 70044), (449, 48516), (622, 35022), (898, 24258), (933, 23348), (1244, 17511), (1347, 16172), (1796, 12129), (1866, 11674), (2694, 8086), (3732, 5837), (4043, 5388)]