20284791

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 29937600

約数和(自身を除く): 9652809

約数列:

[1, 3, 17, 41, 51, 89, 109, 123, 267, 327, 697, 1513, 1853, 2091, 3649, 4469, 4539, 5559, 9701, 10947, 13407, 29103, 62033, 75973, 164917, 186099, 227919, 397741, 494751, 1193223, 6761597, 20284791]

約数ペア:

[(1, 20284791), (3, 6761597), (17, 1193223), (41, 494751), (51, 397741), (89, 227919), (109, 186099), (123, 164917), (267, 75973), (327, 62033), (697, 29103), (1513, 13407), (1853, 10947), (2091, 9701), (3649, 5559), (4469, 4539)]