218456001

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{20693}}^1$

素因数の和:20742

約数の個数: 32

約数和(自身を含む): 357592320

約数和(自身を除く): 139136319

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 153, 207, 391, 459, 621, 1173, 3519, 10557, 20693, 62079, 186237, 351781, 475939, 558711, 1055343, 1427817, 3166029, 4283451, 8090963, 9498087, 12850353, 24272889, 72818667, 218456001]

約数ペア:

[(1, 218456001), (3, 72818667), (9, 24272889), (17, 12850353), (23, 9498087), (27, 8090963), (51, 4283451), (69, 3166029), (153, 1427817), (207, 1055343), (391, 558711), (459, 475939), (621, 351781), (1173, 186237), (3519, 62079), (10557, 20693)]