21480585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1373}}^1$

素因数の和:1537

約数の個数: 32

約数和(自身を含む): 39571200

約数和(自身を除く): 18090615

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 149, 447, 745, 1043, 1373, 2235, 3129, 4119, 5215, 6865, 9611, 15645, 20595, 28833, 48055, 144165, 204577, 613731, 1022885, 1432039, 3068655, 4296117, 7160195, 21480585]

約数ペア:

[(1, 21480585), (3, 7160195), (5, 4296117), (7, 3068655), (15, 1432039), (21, 1022885), (35, 613731), (105, 204577), (149, 144165), (447, 48055), (745, 28833), (1043, 20595), (1373, 15645), (2235, 9611), (3129, 6865), (4119, 5215)]