18239997

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 8855043

約数列:

[1, 3, 17, 31, 51, 83, 93, 139, 249, 417, 527, 1411, 1581, 2363, 2573, 4233, 4309, 7089, 7719, 11537, 12927, 34611, 43741, 73253, 131223, 196129, 219759, 357647, 588387, 1072941, 6079999, 18239997]

約数ペア:

[(1, 18239997), (3, 6079999), (17, 1072941), (31, 588387), (51, 357647), (83, 219759), (93, 196129), (139, 131223), (249, 73253), (417, 43741), (527, 34611), (1411, 12927), (1581, 11537), (2363, 7719), (2573, 7089), (4233, 4309)]