21737120

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1319}}^1$

素因数の和:1437

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 30154720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 160, 206, 412, 515, 824, 1030, 1319, 1648, 2060, 2638, 3296, 4120, 5276, 6595, 8240, 10552, 13190, 16480, 21104, 26380, 42208, 52760, 105520, 135857, 211040, 271714, 543428, 679285, 1086856, 1358570, 2173712, 2717140, 4347424, 5434280, 10868560, 21737120]

約数ペア:

[(1, 21737120), (2, 10868560), (4, 5434280), (5, 4347424), (8, 2717140), (10, 2173712), (16, 1358570), (20, 1086856), (32, 679285), (40, 543428), (80, 271714), (103, 211040), (160, 135857), (206, 105520), (412, 52760), (515, 42208), (824, 26380), (1030, 21104), (1319, 16480), (1648, 13190), (2060, 10552), (2638, 8240), (3296, 6595), (4120, 5276)]