19955079

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{3677}}^1$

素因数の和:3756

約数の個数: 20

約数和(自身を含む): 30262584

約数和(自身を除く): 10307505

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 3677, 5427, 11031, 33093, 99279, 246359, 297837, 739077, 2217231, 6651693, 19955079]

約数ペア:

[(1, 19955079), (3, 6651693), (9, 2217231), (27, 739077), (67, 297837), (81, 246359), (201, 99279), (603, 33093), (1809, 11031), (3677, 5427)]