221517570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{17539}}^1$

素因数の和:17970

約数の個数: 32

約数和(自身を含む): 532935360

約数和(自身を除く): 311417790

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 421, 842, 1263, 2105, 2526, 4210, 6315, 12630, 17539, 35078, 52617, 87695, 105234, 175390, 263085, 526170, 7383919, 14767838, 22151757, 36919595, 44303514, 73839190, 110758785, 221517570]

約数ペア:

[(1, 221517570), (2, 110758785), (3, 73839190), (5, 44303514), (6, 36919595), (10, 22151757), (15, 14767838), (30, 7383919), (421, 526170), (842, 263085), (1263, 175390), (2105, 105234), (2526, 87695), (4210, 52617), (6315, 35078), (12630, 17539)]