20671772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 42201600

約数和(自身を除く): 21529828

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 79, 158, 209, 313, 316, 418, 626, 836, 869, 1252, 1501, 1738, 3002, 3443, 3476, 5947, 6004, 6886, 11894, 13772, 16511, 23788, 24727, 33022, 49454, 65417, 66044, 98908, 130834, 261668, 271997, 469813, 543994, 939626, 1087988, 1879252, 5167943, 10335886, 20671772]

約数ペア:

[(1, 20671772), (2, 10335886), (4, 5167943), (11, 1879252), (19, 1087988), (22, 939626), (38, 543994), (44, 469813), (76, 271997), (79, 261668), (158, 130834), (209, 98908), (313, 66044), (316, 65417), (418, 49454), (626, 33022), (836, 24727), (869, 23788), (1252, 16511), (1501, 13772), (1738, 11894), (3002, 6886), (3443, 6004), (3476, 5947)]