259778961

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 432579840

約数和(自身を除く): 172800879

約数列:

[1, 3, 9, 13, 27, 37, 39, 83, 111, 117, 241, 249, 333, 351, 481, 723, 747, 999, 1079, 1443, 2169, 2241, 3071, 3133, 3237, 4329, 6507, 8917, 9213, 9399, 9711, 12987, 20003, 26751, 27639, 28197, 29133, 39923, 60009, 80253, 82917, 84591, 115921, 119769, 180027, 240759, 260039, 347763, 359307, 540081, 740111, 780117, 1043289, 1077921, 2220333, 2340351, 3129867, 6660999, 7021053, 9621443, 19982997, 28864329, 86592987, 259778961]

約数ペア:

[(1, 259778961), (3, 86592987), (9, 28864329), (13, 19982997), (27, 9621443), (37, 7021053), (39, 6660999), (83, 3129867), (111, 2340351), (117, 2220333), (241, 1077921), (249, 1043289), (333, 780117), (351, 740111), (481, 540081), (723, 359307), (747, 347763), (999, 260039), (1079, 240759), (1443, 180027), (2169, 119769), (2241, 115921), (3071, 84591), (3133, 82917), (3237, 80253), (4329, 60009), (6507, 39923), (8917, 29133), (9213, 28197), (9399, 27639), (9711, 26751), (12987, 20003)]