21046870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8521}}^1$

素因数の和:8560

約数の個数: 32

約数和(自身を含む): 42950880

約数和(自身を除く): 21904010

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8521, 17042, 42605, 85210, 110773, 161899, 221546, 323798, 553865, 809495, 1107730, 1618990, 2104687, 4209374, 10523435, 21046870]

約数ペア:

[(1, 21046870), (2, 10523435), (5, 4209374), (10, 2104687), (13, 1618990), (19, 1107730), (26, 809495), (38, 553865), (65, 323798), (95, 221546), (130, 161899), (190, 110773), (247, 85210), (494, 42605), (1235, 17042), (2470, 8521)]