25198719

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{383}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 41631744

約数和(自身を除く): 16433025

約数列:

[1, 3, 7, 13, 21, 39, 91, 241, 273, 383, 723, 1149, 1687, 2681, 3133, 4979, 5061, 8043, 9399, 14937, 21931, 34853, 65793, 92303, 104559, 276909, 646121, 1199939, 1938363, 3599817, 8399573, 25198719]

約数ペア:

[(1, 25198719), (3, 8399573), (7, 3599817), (13, 1938363), (21, 1199939), (39, 646121), (91, 276909), (241, 104559), (273, 92303), (383, 65793), (723, 34853), (1149, 21931), (1687, 14937), (2681, 9399), (3133, 8043), (4979, 5061)]