20487016

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12253}}^1$

素因数の和:12289

約数の個数: 32

約数和(自身を含む): 44114400

約数和(自身を除く): 23627384

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12253, 24506, 49012, 98024, 134783, 232807, 269566, 465614, 539132, 931228, 1078264, 1862456, 2560877, 5121754, 10243508, 20487016]

約数ペア:

[(1, 20487016), (2, 10243508), (4, 5121754), (8, 2560877), (11, 1862456), (19, 1078264), (22, 931228), (38, 539132), (44, 465614), (76, 269566), (88, 232807), (152, 134783), (209, 98024), (418, 49012), (836, 24506), (1672, 12253)]