647540091

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 1087527168

約数和(自身を除く): 439987077

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 103, 121, 207, 251, 253, 309, 363, 753, 759, 927, 1089, 1133, 2259, 2277, 2369, 2761, 2783, 3399, 5773, 7107, 8283, 8349, 10197, 12463, 17319, 21321, 24849, 25047, 25853, 26059, 30371, 37389, 51957, 63503, 77559, 78177, 91113, 112167, 190509, 232677, 234531, 273339, 284383, 286649, 571527, 594619, 698533, 853149, 859947, 1783857, 2095599, 2559447, 2579841, 3128213, 5351571, 6286797, 6540809, 9384639, 19622427, 28153917, 58867281, 71948899, 215846697, 647540091]

約数ペア:

[(1, 647540091), (3, 215846697), (9, 71948899), (11, 58867281), (23, 28153917), (33, 19622427), (69, 9384639), (99, 6540809), (103, 6286797), (121, 5351571), (207, 3128213), (251, 2579841), (253, 2559447), (309, 2095599), (363, 1783857), (753, 859947), (759, 853149), (927, 698533), (1089, 594619), (1133, 571527), (2259, 286649), (2277, 284383), (2369, 273339), (2761, 234531), (2783, 232677), (3399, 190509), (5773, 112167), (7107, 91113), (8283, 78177), (8349, 77559), (10197, 63503), (12463, 51957), (17319, 37389), (21321, 30371), (24849, 26059), (25047, 25853)]