72821781

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 111484800

約数和(自身を除く): 38663019

約数列:

[1, 3, 9, 27, 41, 123, 157, 369, 419, 471, 1107, 1257, 1413, 3771, 4239, 6437, 11313, 17179, 19311, 51537, 57933, 65783, 154611, 173799, 197349, 463833, 592047, 1776141, 2697103, 8091309, 24273927, 72821781]

約数ペア:

[(1, 72821781), (3, 24273927), (9, 8091309), (27, 2697103), (41, 1776141), (123, 592047), (157, 463833), (369, 197349), (419, 173799), (471, 154611), (1107, 65783), (1257, 57933), (1413, 51537), (3771, 19311), (4239, 17179), (6437, 11313)]