218391837

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 308810880

約数和(自身を除く): 90419043

約数列:

[1, 3, 29, 73, 87, 137, 219, 251, 411, 753, 2117, 3973, 6351, 7279, 10001, 11919, 18323, 21837, 30003, 34387, 54969, 103161, 290029, 531367, 870087, 997223, 1594101, 2510251, 2991669, 7530753, 72797279, 218391837]

約数ペア:

[(1, 218391837), (3, 72797279), (29, 7530753), (73, 2991669), (87, 2510251), (137, 1594101), (219, 997223), (251, 870087), (411, 531367), (753, 290029), (2117, 103161), (3973, 54969), (6351, 34387), (7279, 30003), (10001, 21837), (11919, 18323)]