18880953

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 33718272

約数和(自身を除く): 14837319

約数列:

[1, 3, 7, 13, 21, 23, 31, 39, 69, 91, 93, 97, 161, 217, 273, 291, 299, 403, 483, 651, 679, 713, 897, 1209, 1261, 2037, 2093, 2139, 2231, 2821, 3007, 3783, 4991, 6279, 6693, 8463, 8827, 9021, 9269, 14973, 15617, 21049, 26481, 27807, 29003, 39091, 46851, 63147, 64883, 69161, 87009, 117273, 194649, 203021, 207483, 273637, 484127, 609063, 820911, 899093, 1452381, 2697279, 6293651, 18880953]

約数ペア:

[(1, 18880953), (3, 6293651), (7, 2697279), (13, 1452381), (21, 899093), (23, 820911), (31, 609063), (39, 484127), (69, 273637), (91, 207483), (93, 203021), (97, 194649), (161, 117273), (217, 87009), (273, 69161), (291, 64883), (299, 63147), (403, 46851), (483, 39091), (651, 29003), (679, 27807), (713, 26481), (897, 21049), (1209, 15617), (1261, 14973), (2037, 9269), (2093, 9021), (2139, 8827), (2231, 8463), (2821, 6693), (3007, 6279), (3783, 4991)]