31539981

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 51710400

約数和(自身を除く): 20170419

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 121, 187, 209, 269, 323, 363, 561, 627, 807, 969, 2057, 2299, 2959, 3553, 4573, 5111, 6171, 6897, 8877, 10659, 13719, 15333, 32549, 39083, 50303, 56221, 86887, 97647, 117249, 150909, 168663, 260661, 553333, 618431, 955757, 1659999, 1855293, 2867271, 10513327, 31539981]

約数ペア:

[(1, 31539981), (3, 10513327), (11, 2867271), (17, 1855293), (19, 1659999), (33, 955757), (51, 618431), (57, 553333), (121, 260661), (187, 168663), (209, 150909), (269, 117249), (323, 97647), (363, 86887), (561, 56221), (627, 50303), (807, 39083), (969, 32549), (2057, 15333), (2299, 13719), (2959, 10659), (3553, 8877), (4573, 6897), (5111, 6171)]