19485927

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 31842720

約数和(自身を除く): 12356793

約数列:

[1, 3, 9, 17, 27, 51, 53, 81, 89, 153, 159, 243, 267, 459, 477, 801, 901, 1377, 1431, 1513, 2403, 2703, 4131, 4293, 4539, 4717, 7209, 8109, 12879, 13617, 14151, 21627, 24327, 40851, 42453, 72981, 80189, 122553, 127359, 218943, 240567, 367659, 382077, 721701, 1146231, 2165103, 6495309, 19485927]

約数ペア:

[(1, 19485927), (3, 6495309), (9, 2165103), (17, 1146231), (27, 721701), (51, 382077), (53, 367659), (81, 240567), (89, 218943), (153, 127359), (159, 122553), (243, 80189), (267, 72981), (459, 42453), (477, 40851), (801, 24327), (901, 21627), (1377, 14151), (1431, 13617), (1513, 12879), (2403, 8109), (2703, 7209), (4131, 4717), (4293, 4539)]