251585631

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1021}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 420900480

約数和(自身を除く): 169314849

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 131, 171, 209, 393, 627, 1021, 1179, 1441, 1881, 2489, 3063, 4323, 7467, 9189, 11231, 12969, 19399, 22401, 27379, 33693, 58197, 82137, 101079, 133751, 174591, 213389, 246411, 401253, 640167, 1203759, 1471261, 1920501, 2541269, 4413783, 7623807, 13241349, 22871421, 27953959, 83861877, 251585631]

約数ペア:

[(1, 251585631), (3, 83861877), (9, 27953959), (11, 22871421), (19, 13241349), (33, 7623807), (57, 4413783), (99, 2541269), (131, 1920501), (171, 1471261), (209, 1203759), (393, 640167), (627, 401253), (1021, 246411), (1179, 213389), (1441, 174591), (1881, 133751), (2489, 101079), (3063, 82137), (4323, 58197), (7467, 33693), (9189, 27379), (11231, 22401), (12969, 19399)]