81084381

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1973}}^1$

素因数の和:2105

約数の個数: 32

約数和(自身を含む): 131389440

約数和(自身を除く): 50305059

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 399, 721, 1957, 1973, 2163, 5871, 5919, 13699, 13811, 37487, 41097, 41433, 112461, 203219, 262409, 609657, 787227, 1422533, 3861161, 4267599, 11583483, 27028127, 81084381]

約数ペア:

[(1, 81084381), (3, 27028127), (7, 11583483), (19, 4267599), (21, 3861161), (57, 1422533), (103, 787227), (133, 609657), (309, 262409), (399, 203219), (721, 112461), (1957, 41433), (1973, 41097), (2163, 37487), (5871, 13811), (5919, 13699)]