21695410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1553}}^1$

素因数の和:1698

約数の個数: 32

約数和(自身を含む): 42964992

約数和(自身を除く): 21269582

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 127, 254, 635, 1270, 1397, 1553, 2794, 3106, 6985, 7765, 13970, 15530, 17083, 34166, 85415, 170830, 197231, 394462, 986155, 1972310, 2169541, 4339082, 10847705, 21695410]

約数ペア:

[(1, 21695410), (2, 10847705), (5, 4339082), (10, 2169541), (11, 1972310), (22, 986155), (55, 394462), (110, 197231), (127, 170830), (254, 85415), (635, 34166), (1270, 17083), (1397, 15530), (1553, 13970), (2794, 7765), (3106, 6985)]