21936880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{911}}^1$

素因数の和:974

約数の個数: 80

約数和(自身を含む): 59710464

約数和(自身を除く): 37773584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 911, 1204, 1505, 1720, 1822, 2408, 3010, 3440, 3644, 4555, 4816, 6020, 6377, 7288, 9110, 12040, 12754, 14576, 18220, 24080, 25508, 31885, 36440, 39173, 51016, 63770, 72880, 78346, 102032, 127540, 156692, 195865, 255080, 274211, 313384, 391730, 510160, 548422, 626768, 783460, 1096844, 1371055, 1566920, 2193688, 2742110, 3133840, 4387376, 5484220, 10968440, 21936880]

約数ペア:

[(1, 21936880), (2, 10968440), (4, 5484220), (5, 4387376), (7, 3133840), (8, 2742110), (10, 2193688), (14, 1566920), (16, 1371055), (20, 1096844), (28, 783460), (35, 626768), (40, 548422), (43, 510160), (56, 391730), (70, 313384), (80, 274211), (86, 255080), (112, 195865), (140, 156692), (172, 127540), (215, 102032), (280, 78346), (301, 72880), (344, 63770), (430, 51016), (560, 39173), (602, 36440), (688, 31885), (860, 25508), (911, 24080), (1204, 18220), (1505, 14576), (1720, 12754), (1822, 12040), (2408, 9110), (3010, 7288), (3440, 6377), (3644, 6020), (4555, 4816)]