21359992

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2003}}^1$

素因数の和:2083

約数の個数: 32

約数和(自身を含む): 42324480

約数和(自身を除く): 20964488

約数列:

[1, 2, 4, 8, 31, 43, 62, 86, 124, 172, 248, 344, 1333, 2003, 2666, 4006, 5332, 8012, 10664, 16024, 62093, 86129, 124186, 172258, 248372, 344516, 496744, 689032, 2669999, 5339998, 10679996, 21359992]

約数ペア:

[(1, 21359992), (2, 10679996), (4, 5339998), (8, 2669999), (31, 689032), (43, 496744), (62, 344516), (86, 248372), (124, 172258), (172, 124186), (248, 86129), (344, 62093), (1333, 16024), (2003, 10664), (2666, 8012), (4006, 5332)]