19812495

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 32855040

約数和(自身を除く): 13042545

約数列:

[1, 3, 5, 15, 59, 61, 177, 183, 295, 305, 367, 885, 915, 1101, 1835, 3599, 5505, 10797, 17995, 21653, 22387, 53985, 64959, 67161, 108265, 111935, 324795, 335805, 1320833, 3962499, 6604165, 19812495]

約数ペア:

[(1, 19812495), (3, 6604165), (5, 3962499), (15, 1320833), (59, 335805), (61, 324795), (177, 111935), (183, 108265), (295, 67161), (305, 64959), (367, 53985), (885, 22387), (915, 21653), (1101, 17995), (1835, 10797), (3599, 5505)]