21616960

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1571}}^1$

素因数の和:1631

約数の個数: 56

約数和(自身を含む): 52706016

約数和(自身を除く): 31089056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1376, 1571, 1720, 2752, 3142, 3440, 6284, 6880, 7855, 12568, 13760, 15710, 25136, 31420, 50272, 62840, 67553, 100544, 125680, 135106, 251360, 270212, 337765, 502720, 540424, 675530, 1080848, 1351060, 2161696, 2702120, 4323392, 5404240, 10808480, 21616960]

約数ペア:

[(1, 21616960), (2, 10808480), (4, 5404240), (5, 4323392), (8, 2702120), (10, 2161696), (16, 1351060), (20, 1080848), (32, 675530), (40, 540424), (43, 502720), (64, 337765), (80, 270212), (86, 251360), (160, 135106), (172, 125680), (215, 100544), (320, 67553), (344, 62840), (430, 50272), (688, 31420), (860, 25136), (1376, 15710), (1571, 13760), (1720, 12568), (2752, 7855), (3142, 6880), (3440, 6284)]