21060663

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 32223744

約数和(自身を除く): 11163081

約数列:

[1, 3, 13, 23, 39, 53, 69, 159, 299, 443, 689, 897, 1219, 1329, 2067, 3657, 5759, 10189, 15847, 17277, 23479, 30567, 47541, 70437, 132457, 305227, 397371, 540017, 915681, 1620051, 7020221, 21060663]

約数ペア:

[(1, 21060663), (3, 7020221), (13, 1620051), (23, 915681), (39, 540017), (53, 397371), (69, 305227), (159, 132457), (299, 70437), (443, 47541), (689, 30567), (897, 23479), (1219, 17277), (1329, 15847), (2067, 10189), (3657, 5759)]