215631647

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{389}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 282147840

約数和(自身を除く): 66516193

約数列:

[1, 7, 11, 23, 77, 161, 253, 313, 389, 1771, 2191, 2723, 3443, 4279, 7199, 8947, 24101, 29953, 50393, 62629, 79189, 98417, 121757, 554323, 688919, 852299, 1339327, 2800411, 9375289, 19602877, 30804521, 215631647]

約数ペア:

[(1, 215631647), (7, 30804521), (11, 19602877), (23, 9375289), (77, 2800411), (161, 1339327), (253, 852299), (313, 688919), (389, 554323), (1771, 121757), (2191, 98417), (2723, 79189), (3443, 62629), (4279, 50393), (7199, 29953), (8947, 24101)]