21677615

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{751}}^1$

素因数の和:1030

約数の個数: 16

約数和(自身を含む): 27288576

約数和(自身を除く): 5610961

約数列:

[1, 5, 23, 115, 251, 751, 1255, 3755, 5773, 17273, 28865, 86365, 188501, 942505, 4335523, 21677615]

約数ペア:

[(1, 21677615), (5, 4335523), (23, 942505), (115, 188501), (251, 86365), (751, 28865), (1255, 17273), (3755, 5773)]