21296660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13829}}^1$

素因数の和:13856

約数の個数: 48

約数和(自身を含む): 55762560

約数和(自身を除く): 34465900

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13829, 27658, 55316, 69145, 96803, 138290, 152119, 193606, 276580, 304238, 387212, 484015, 608476, 760595, 968030, 1064833, 1521190, 1936060, 2129666, 3042380, 4259332, 5324165, 10648330, 21296660]

約数ペア:

[(1, 21296660), (2, 10648330), (4, 5324165), (5, 4259332), (7, 3042380), (10, 2129666), (11, 1936060), (14, 1521190), (20, 1064833), (22, 968030), (28, 760595), (35, 608476), (44, 484015), (55, 387212), (70, 304238), (77, 276580), (110, 193606), (140, 152119), (154, 138290), (220, 96803), (308, 69145), (385, 55316), (770, 27658), (1540, 13829)]