223156971

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 361405440

約数和(自身を除く): 138248469

約数列:

[1, 3, 9, 23, 27, 43, 61, 69, 129, 137, 183, 207, 387, 411, 549, 621, 989, 1161, 1233, 1403, 1647, 2623, 2967, 3151, 3699, 4209, 5891, 7869, 8357, 8901, 9453, 12627, 17673, 23607, 25071, 26703, 28359, 37881, 53019, 60329, 70821, 75213, 85077, 135493, 159057, 180987, 192211, 225639, 359351, 406479, 542961, 576633, 1078053, 1219437, 1628883, 1729899, 3234159, 3658311, 5189697, 8265073, 9702477, 24795219, 74385657, 223156971]

約数ペア:

[(1, 223156971), (3, 74385657), (9, 24795219), (23, 9702477), (27, 8265073), (43, 5189697), (61, 3658311), (69, 3234159), (129, 1729899), (137, 1628883), (183, 1219437), (207, 1078053), (387, 576633), (411, 542961), (549, 406479), (621, 359351), (989, 225639), (1161, 192211), (1233, 180987), (1403, 159057), (1647, 135493), (2623, 85077), (2967, 75213), (3151, 70821), (3699, 60329), (4209, 53019), (5891, 37881), (7869, 28359), (8357, 26703), (8901, 25071), (9453, 23607), (12627, 17673)]