21517760

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6113}}^1$

素因数の和:6141

約数の個数: 56

約数和(自身を含む): 55906416

約数和(自身を除く): 34388656

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 6113, 12226, 24452, 30565, 48904, 61130, 67243, 97808, 122260, 134486, 195616, 244520, 268972, 336215, 391232, 489040, 537944, 672430, 978080, 1075888, 1344860, 1956160, 2151776, 2689720, 4303552, 5379440, 10758880, 21517760]

約数ペア:

[(1, 21517760), (2, 10758880), (4, 5379440), (5, 4303552), (8, 2689720), (10, 2151776), (11, 1956160), (16, 1344860), (20, 1075888), (22, 978080), (32, 672430), (40, 537944), (44, 489040), (55, 391232), (64, 336215), (80, 268972), (88, 244520), (110, 195616), (160, 134486), (176, 122260), (220, 97808), (320, 67243), (352, 61130), (440, 48904), (704, 30565), (880, 24452), (1760, 12226), (3520, 6113)]