81307989

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{8117}}^1$

素因数の和:8186

約数の個数: 32

約数和(自身を含む): 140279040

約数和(自身を除く): 58971051

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 3339, 8117, 10017, 24351, 56819, 73053, 170457, 219159, 430201, 511371, 1290603, 1534113, 3011407, 3871809, 9034221, 11615427, 27102663, 81307989]

約数ペア:

[(1, 81307989), (3, 27102663), (7, 11615427), (9, 9034221), (21, 3871809), (27, 3011407), (53, 1534113), (63, 1290603), (159, 511371), (189, 430201), (371, 219159), (477, 170457), (1113, 73053), (1431, 56819), (3339, 24351), (8117, 10017)]