30905721

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:331

約数の個数: 72

約数和(自身を含む): 59327424

約数和(自身を除く): 28421703

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 49, 63, 69, 77, 99, 147, 161, 207, 231, 253, 277, 441, 483, 539, 693, 759, 831, 1127, 1449, 1617, 1771, 1939, 2277, 2493, 3047, 3381, 4851, 5313, 5817, 6371, 9141, 10143, 12397, 13573, 15939, 17451, 19113, 21329, 27423, 37191, 40719, 44597, 57339, 63987, 70081, 111573, 122157, 133791, 149303, 191961, 210243, 312179, 401373, 447909, 490567, 630729, 936537, 1343727, 1471701, 2809611, 3433969, 4415103, 10301907, 30905721]

約数ペア:

[(1, 30905721), (3, 10301907), (7, 4415103), (9, 3433969), (11, 2809611), (21, 1471701), (23, 1343727), (33, 936537), (49, 630729), (63, 490567), (69, 447909), (77, 401373), (99, 312179), (147, 210243), (161, 191961), (207, 149303), (231, 133791), (253, 122157), (277, 111573), (441, 70081), (483, 63987), (539, 57339), (693, 44597), (759, 40719), (831, 37191), (1127, 27423), (1449, 21329), (1617, 19113), (1771, 17451), (1939, 15939), (2277, 13573), (2493, 12397), (3047, 10143), (3381, 9141), (4851, 6371), (5313, 5817)]