21313840

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9187}}^1$

素因数の和:9229

約数の個数: 40

約数和(自身を含む): 51269040

約数和(自身を除く): 29955200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9187, 18374, 36748, 45935, 73496, 91870, 146992, 183740, 266423, 367480, 532846, 734960, 1065692, 1332115, 2131384, 2664230, 4262768, 5328460, 10656920, 21313840]

約数ペア:

[(1, 21313840), (2, 10656920), (4, 5328460), (5, 4262768), (8, 2664230), (10, 2131384), (16, 1332115), (20, 1065692), (29, 734960), (40, 532846), (58, 367480), (80, 266423), (116, 183740), (145, 146992), (232, 91870), (290, 73496), (464, 45935), (580, 36748), (1160, 18374), (2320, 9187)]