21781158

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16729}}^1$

素因数の和:16772

約数の個数: 32

約数和(自身を含む): 51394560

約数和(自身を除く): 29613402

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 16729, 33458, 50187, 100374, 117103, 234206, 351309, 518599, 702618, 1037198, 1555797, 3111594, 3630193, 7260386, 10890579, 21781158]

約数ペア:

[(1, 21781158), (2, 10890579), (3, 7260386), (6, 3630193), (7, 3111594), (14, 1555797), (21, 1037198), (31, 702618), (42, 518599), (62, 351309), (93, 234206), (186, 117103), (217, 100374), (434, 50187), (651, 33458), (1302, 16729)]