253186989

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 396995904

約数和(自身を除く): 143808915

約数列:

[1, 3, 11, 19, 33, 53, 57, 159, 209, 361, 401, 583, 627, 1007, 1083, 1203, 1749, 3021, 3971, 4411, 7619, 11077, 11913, 13233, 19133, 21253, 22857, 33231, 57399, 63759, 83809, 144761, 210463, 233783, 251427, 403807, 434283, 631389, 701349, 1211421, 1592371, 4441877, 4777113, 7672333, 13325631, 23016999, 84395663, 253186989]

約数ペア:

[(1, 253186989), (3, 84395663), (11, 23016999), (19, 13325631), (33, 7672333), (53, 4777113), (57, 4441877), (159, 1592371), (209, 1211421), (361, 701349), (401, 631389), (583, 434283), (627, 403807), (1007, 251427), (1083, 233783), (1203, 210463), (1749, 144761), (3021, 83809), (3971, 63759), (4411, 57399), (7619, 33231), (11077, 22857), (11913, 21253), (13233, 19133)]