20161900809

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1\times {\mathrm{487}}^1$

素因数の和:1091

約数の個数: 64

約数和(自身を含む): 31500595200

約数和(自身を除く): 11338694391

約数列:

[1, 3, 9, 23, 27, 69, 163, 207, 409, 487, 489, 621, 1227, 1461, 1467, 3681, 3749, 4383, 4401, 9407, 11043, 11201, 11247, 13149, 28221, 33603, 33741, 66667, 79381, 84663, 100809, 101223, 199183, 200001, 238143, 253989, 302427, 597549, 600003, 714429, 1533341, 1792647, 1800009, 1825763, 2143287, 4581209, 4600023, 5377941, 5477289, 13743627, 13800069, 16431867, 32466829, 41230881, 41400207, 49295601, 97400487, 123692643, 292201461, 746737067, 876604383, 2240211201, 6720633603, 20161900809]

約数ペア:

[(1, 20161900809), (3, 6720633603), (9, 2240211201), (23, 876604383), (27, 746737067), (69, 292201461), (163, 123692643), (207, 97400487), (409, 49295601), (487, 41400207), (489, 41230881), (621, 32466829), (1227, 16431867), (1461, 13800069), (1467, 13743627), (3681, 5477289), (3749, 5377941), (4383, 4600023), (4401, 4581209), (9407, 2143287), (11043, 1825763), (11201, 1800009), (11247, 1792647), (13149, 1533341), (28221, 714429), (33603, 600003), (33741, 597549), (66667, 302427), (79381, 253989), (84663, 238143), (100809, 200001), (101223, 199183)]