20195005971

素因数分解:

$3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{229}}^1\times {\mathrm{5309}}^1$

素因数の和:5668

約数の個数: 48

約数和(自身を含む): 31744029600

約数和(自身を除く): 11549023629

約数列:

[1, 3, 7, 21, 49, 113, 147, 229, 339, 687, 791, 1603, 2373, 4809, 5309, 5537, 11221, 15927, 16611, 25877, 33663, 37163, 77631, 111489, 181139, 260141, 543417, 599917, 780423, 1215761, 1267973, 1799751, 3647283, 3803919, 4199419, 8510327, 12598257, 25530981, 29395933, 59572289, 88187799, 137380993, 178716867, 412142979, 961666951, 2885000853, 6731668657, 20195005971]

約数ペア:

[(1, 20195005971), (3, 6731668657), (7, 2885000853), (21, 961666951), (49, 412142979), (113, 178716867), (147, 137380993), (229, 88187799), (339, 59572289), (687, 29395933), (791, 25530981), (1603, 12598257), (2373, 8510327), (4809, 4199419), (5309, 3803919), (5537, 3647283), (11221, 1799751), (15927, 1267973), (16611, 1215761), (25877, 780423), (33663, 599917), (37163, 543417), (77631, 260141), (111489, 181139)]