28049931

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1181}}^1$

素因数の和:1236

約数の個数: 48

約数和(自身を含む): 51629760

約数和(自身を除く): 23579829

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 819, 1131, 1181, 1827, 2639, 3393, 3543, 7917, 8267, 10629, 15353, 23751, 24801, 34249, 46059, 74403, 102747, 107471, 138177, 239743, 308241, 322413, 445237, 719229, 967239, 1335711, 2157687, 3116659, 4007133, 9349977, 28049931]

約数ペア:

[(1, 28049931), (3, 9349977), (7, 4007133), (9, 3116659), (13, 2157687), (21, 1335711), (29, 967239), (39, 719229), (63, 445237), (87, 322413), (91, 308241), (117, 239743), (203, 138177), (261, 107471), (273, 102747), (377, 74403), (609, 46059), (819, 34249), (1131, 24801), (1181, 23751), (1827, 15353), (2639, 10629), (3393, 8267), (3543, 7917)]