20139237

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 12882843

約数列:

[1, 3, 9, 17, 23, 51, 59, 69, 97, 153, 177, 207, 291, 391, 531, 873, 1003, 1173, 1357, 1649, 2231, 3009, 3519, 4071, 4947, 5723, 6693, 9027, 12213, 14841, 17169, 20079, 23069, 37927, 51507, 69207, 97291, 113781, 131629, 207621, 291873, 341343, 394887, 875619, 1184661, 2237693, 6713079, 20139237]

約数ペア:

[(1, 20139237), (3, 6713079), (9, 2237693), (17, 1184661), (23, 875619), (51, 394887), (59, 341343), (69, 291873), (97, 207621), (153, 131629), (177, 113781), (207, 97291), (291, 69207), (391, 51507), (531, 37927), (873, 23069), (1003, 20079), (1173, 17169), (1357, 14841), (1649, 12213), (2231, 9027), (3009, 6693), (3519, 5723), (4071, 4947)]