221233873

素因数分解:

$7^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 263473152

約数和(自身を除く): 42239279

約数列:

[1, 7, 49, 73, 127, 487, 511, 889, 3409, 3577, 6223, 9271, 23863, 35551, 61849, 64897, 248857, 432943, 454279, 1741999, 3030601, 4514977, 31604839, 221233873]

約数ペア:

[(1, 221233873), (7, 31604839), (49, 4514977), (73, 3030601), (127, 1741999), (487, 454279), (511, 432943), (889, 248857), (3409, 64897), (3577, 61849), (6223, 35551), (9271, 23863)]