161618247

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9829}}^1$

素因数の和:9877

約数の個数: 40

約数和(自身を含む): 285463200

約数和(自身を除く): 123844953

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 609, 783, 1827, 2349, 5481, 9829, 16443, 29487, 68803, 88461, 206409, 265383, 285041, 619227, 796149, 855123, 1857681, 1995287, 2565369, 5573043, 5985861, 7696107, 17957583, 23088321, 53872749, 161618247]

約数ペア:

[(1, 161618247), (3, 53872749), (7, 23088321), (9, 17957583), (21, 7696107), (27, 5985861), (29, 5573043), (63, 2565369), (81, 1995287), (87, 1857681), (189, 855123), (203, 796149), (261, 619227), (567, 285041), (609, 265383), (783, 206409), (1827, 88461), (2349, 68803), (5481, 29487), (9829, 16443)]