18703667927

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1\times {\mathrm{2609}}^1$

素因数の和:2943

約数の個数: 32

約数和(自身を含む): 22080015360

約数和(自身を除く): 3376347433

約数列:

[1, 7, 61, 103, 163, 427, 721, 1141, 2609, 6283, 9943, 16789, 18263, 43981, 69601, 117523, 159149, 268727, 425267, 1024129, 1114043, 1881089, 2976869, 7168903, 16392347, 25941287, 43802501, 114746429, 181589009, 306617507, 2671952561, 18703667927]

約数ペア:

[(1, 18703667927), (7, 2671952561), (61, 306617507), (103, 181589009), (163, 114746429), (427, 43802501), (721, 25941287), (1141, 16392347), (2609, 7168903), (6283, 2976869), (9943, 1881089), (16789, 1114043), (18263, 1024129), (43981, 425267), (69601, 268727), (117523, 159149)]