217856835

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{4243}}^1$

素因数の和:4424

約数の個数: 48

約数和(自身を含む): 434313984

約数和(自身を除く): 216457149

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 163, 315, 489, 815, 1141, 1467, 2445, 3423, 4243, 5705, 7335, 10269, 12729, 17115, 21215, 29701, 38187, 51345, 63645, 89103, 148505, 190935, 267309, 445515, 691609, 1336545, 2074827, 3458045, 4841263, 6224481, 10374135, 14523789, 24206315, 31122405, 43571367, 72618945, 217856835]

約数ペア:

[(1, 217856835), (3, 72618945), (5, 43571367), (7, 31122405), (9, 24206315), (15, 14523789), (21, 10374135), (35, 6224481), (45, 4841263), (63, 3458045), (105, 2074827), (163, 1336545), (315, 691609), (489, 445515), (815, 267309), (1141, 190935), (1467, 148505), (2445, 89103), (3423, 63645), (4243, 51345), (5705, 38187), (7335, 29701), (10269, 21215), (12729, 17115)]