19998735

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1493}}^1$

素因数の和:1567

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 14423025

約数列:

[1, 3, 5, 15, 19, 47, 57, 95, 141, 235, 285, 705, 893, 1493, 2679, 4465, 4479, 7465, 13395, 22395, 28367, 70171, 85101, 141835, 210513, 350855, 425505, 1052565, 1333249, 3999747, 6666245, 19998735]

約数ペア:

[(1, 19998735), (3, 6666245), (5, 3999747), (15, 1333249), (19, 1052565), (47, 425505), (57, 350855), (95, 210513), (141, 141835), (235, 85101), (285, 70171), (705, 28367), (893, 22395), (1493, 13395), (2679, 7465), (4465, 4479)]