31988235

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 52512768

約数和(自身を除く): 20524533

約数列:

[1, 3, 5, 15, 73, 131, 219, 223, 365, 393, 655, 669, 1095, 1115, 1965, 3345, 9563, 16279, 28689, 29213, 47815, 48837, 81395, 87639, 143445, 146065, 244185, 438195, 2132549, 6397647, 10662745, 31988235]

約数ペア:

[(1, 31988235), (3, 10662745), (5, 6397647), (15, 2132549), (73, 438195), (131, 244185), (219, 146065), (223, 143445), (365, 87639), (393, 81395), (655, 48837), (669, 47815), (1095, 29213), (1115, 28689), (1965, 16279), (3345, 9563)]