21627879

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{349}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 35750400

約数和(自身を除く): 14122521

約数列:

[1, 3, 7, 13, 21, 39, 91, 227, 273, 349, 681, 1047, 1589, 2443, 2951, 4537, 4767, 7329, 8853, 13611, 20657, 31759, 61971, 79223, 95277, 237669, 554561, 1029899, 1663683, 3089697, 7209293, 21627879]

約数ペア:

[(1, 21627879), (3, 7209293), (7, 3089697), (13, 1663683), (21, 1029899), (39, 554561), (91, 237669), (227, 95277), (273, 79223), (349, 61971), (681, 31759), (1047, 20657), (1589, 13611), (2443, 8853), (2951, 7329), (4537, 4767)]