21659385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{881}}^1$

素因数の和:1049

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 16443015

約数列:

[1, 3, 5, 11, 15, 33, 55, 149, 165, 447, 745, 881, 1639, 2235, 2643, 4405, 4917, 8195, 9691, 13215, 24585, 29073, 48455, 131269, 145365, 393807, 656345, 1443959, 1969035, 4331877, 7219795, 21659385]

約数ペア:

[(1, 21659385), (3, 7219795), (5, 4331877), (11, 1969035), (15, 1443959), (33, 656345), (55, 393807), (149, 145365), (165, 131269), (447, 48455), (745, 29073), (881, 24585), (1639, 13215), (2235, 9691), (2643, 8195), (4405, 4917)]