17996880987

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{971177}}^1$

素因数の和:971283

約数の個数: 24

約数和(自身を含む): 27270678240

約数和(自身を除く): 9273797253

約数列:

[1, 3, 9, 29, 71, 87, 213, 261, 639, 2059, 6177, 18531, 971177, 2913531, 8740593, 28164133, 68953567, 84492399, 206860701, 253477197, 620582103, 1999653443, 5998960329, 17996880987]

約数ペア:

[(1, 17996880987), (3, 5998960329), (9, 1999653443), (29, 620582103), (71, 253477197), (87, 206860701), (213, 84492399), (261, 68953567), (639, 28164133), (2059, 8740593), (6177, 2913531), (18531, 971177)]