21537633

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 32457600

約数和(自身を除く): 10919967

約数列:

[1, 3, 13, 29, 39, 87, 137, 139, 377, 411, 417, 1131, 1781, 1807, 3973, 4031, 5343, 5421, 11919, 12093, 19043, 51649, 52403, 57129, 154947, 157209, 247559, 552247, 742677, 1656741, 7179211, 21537633]

約数ペア:

[(1, 21537633), (3, 7179211), (13, 1656741), (29, 742677), (39, 552247), (87, 247559), (137, 157209), (139, 154947), (377, 57129), (411, 52403), (417, 51649), (1131, 19043), (1781, 12093), (1807, 11919), (3973, 5421), (4031, 5343)]