642772071

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{18701}}^1$

素因数の和:18796

約数の個数: 32

約数和(自身を含む): 1017388800

約数和(自身を除く): 374616729

約数列:

[1, 3, 9, 19, 27, 57, 67, 171, 201, 513, 603, 1273, 1809, 3819, 11457, 18701, 34371, 56103, 168309, 355319, 504927, 1065957, 1252967, 3197871, 3758901, 9593613, 11276703, 23806373, 33830109, 71419119, 214257357, 642772071]

約数ペア:

[(1, 642772071), (3, 214257357), (9, 71419119), (19, 33830109), (27, 23806373), (57, 11276703), (67, 9593613), (171, 3758901), (201, 3197871), (513, 1252967), (603, 1065957), (1273, 504927), (1809, 355319), (3819, 168309), (11457, 56103), (18701, 34371)]