20945615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{7949}}^1$

素因数の和:8002

約数の個数: 16

約数和(自身を含む): 27475200

約数和(自身を除く): 6529585

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 7949, 39745, 135133, 246419, 675665, 1232095, 4189123, 20945615]

約数ペア:

[(1, 20945615), (5, 4189123), (17, 1232095), (31, 675665), (85, 246419), (155, 135133), (527, 39745), (2635, 7949)]