19497429

素因数分解:

$3^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:407

約数の個数: 40

約数和(自身を含む): 33663168

約数和(自身を除く): 14165739

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 137, 189, 251, 411, 567, 753, 959, 1233, 1757, 2259, 2877, 3699, 5271, 6777, 8631, 11097, 15813, 20331, 25893, 34387, 47439, 77679, 103161, 142317, 240709, 309483, 722127, 928449, 2166381, 2785347, 6499143, 19497429]

約数ペア:

[(1, 19497429), (3, 6499143), (7, 2785347), (9, 2166381), (21, 928449), (27, 722127), (63, 309483), (81, 240709), (137, 142317), (189, 103161), (251, 77679), (411, 47439), (567, 34387), (753, 25893), (959, 20331), (1233, 15813), (1757, 11097), (2259, 8631), (2877, 6777), (3699, 5271)]