221497731

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1181}}^1$

素因数の和:1436

約数の個数: 48

約数和(自身を含む): 395828160

約数和(自身を除く): 174330429

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 229, 273, 687, 819, 1181, 1603, 2061, 2977, 3543, 4809, 8267, 8931, 10629, 14427, 15353, 20839, 24801, 26793, 46059, 62517, 74403, 107471, 138177, 187551, 270449, 322413, 811347, 967239, 1893143, 2434041, 3515837, 5679429, 10547511, 17038287, 24610859, 31642533, 73832577, 221497731]

約数ペア:

[(1, 221497731), (3, 73832577), (7, 31642533), (9, 24610859), (13, 17038287), (21, 10547511), (39, 5679429), (63, 3515837), (91, 2434041), (117, 1893143), (229, 967239), (273, 811347), (687, 322413), (819, 270449), (1181, 187551), (1603, 138177), (2061, 107471), (2977, 74403), (3543, 62517), (4809, 46059), (8267, 26793), (8931, 24801), (10629, 20839), (14427, 15353)]