20624835

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2551}}^1$

素因数の和:2584

約数の個数: 48

約数和(自身を含む): 41893632

約数和(自身を除く): 21268797

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 385, 539, 735, 1155, 1617, 2551, 2695, 7653, 8085, 12755, 17857, 28061, 38265, 53571, 84183, 89285, 124999, 140305, 196427, 267855, 374997, 420915, 589281, 624995, 982135, 1374989, 1874985, 2946405, 4124967, 6874945, 20624835]

約数ペア:

[(1, 20624835), (3, 6874945), (5, 4124967), (7, 2946405), (11, 1874985), (15, 1374989), (21, 982135), (33, 624995), (35, 589281), (49, 420915), (55, 374997), (77, 267855), (105, 196427), (147, 140305), (165, 124999), (231, 89285), (245, 84183), (385, 53571), (539, 38265), (735, 28061), (1155, 17857), (1617, 12755), (2551, 8085), (2695, 7653)]