17943687

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 40

約数和(自身を含む): 28906416

約数和(自身を除く): 10962729

約数列:

[1, 3, 9, 17, 27, 51, 81, 83, 153, 157, 249, 459, 471, 747, 1377, 1411, 1413, 2241, 2669, 4233, 4239, 6723, 8007, 12699, 12717, 13031, 24021, 38097, 39093, 72063, 114291, 117279, 216189, 221527, 351837, 664581, 1055511, 1993743, 5981229, 17943687]

約数ペア:

[(1, 17943687), (3, 5981229), (9, 1993743), (17, 1055511), (27, 664581), (51, 351837), (81, 221527), (83, 216189), (153, 117279), (157, 114291), (249, 72063), (459, 39093), (471, 38097), (747, 24021), (1377, 13031), (1411, 12717), (1413, 12699), (2241, 8007), (2669, 6723), (4233, 4239)]