217687533

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{8353}}^1$

素因数の和:8453

約数の個数: 32

約数和(自身を含む): 356080896

約数和(自身を除く): 138393363

約数列:

[1, 3, 7, 17, 21, 51, 73, 119, 219, 357, 511, 1241, 1533, 3723, 8353, 8687, 25059, 26061, 58471, 142001, 175413, 426003, 609769, 994007, 1829307, 2982021, 4268383, 10366073, 12805149, 31098219, 72562511, 217687533]

約数ペア:

[(1, 217687533), (3, 72562511), (7, 31098219), (17, 12805149), (21, 10366073), (51, 4268383), (73, 2982021), (119, 1829307), (219, 994007), (357, 609769), (511, 426003), (1241, 175413), (1533, 142001), (3723, 58471), (8353, 26061), (8687, 25059)]