72180639

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{46901}}^1$

素因数の和:46932

約数の個数: 20

約数和(自身を含む): 113502840

約数和(自身を除く): 41322201

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 46901, 140703, 422109, 891119, 1266327, 2673357, 3798981, 8020071, 24060213, 72180639]

約数ペア:

[(1, 72180639), (3, 24060213), (9, 8020071), (19, 3798981), (27, 2673357), (57, 1266327), (81, 891119), (171, 422109), (513, 140703), (1539, 46901)]