20259015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3163}}^1$

素因数の和:3239

約数の個数: 32

約数和(自身を含む): 37664256

約数和(自身を除く): 17405241

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 3163, 6405, 9489, 15815, 22141, 47445, 66423, 110705, 192943, 332115, 578829, 964715, 1350601, 2894145, 4051803, 6753005, 20259015]

約数ペア:

[(1, 20259015), (3, 6753005), (5, 4051803), (7, 2894145), (15, 1350601), (21, 964715), (35, 578829), (61, 332115), (105, 192943), (183, 110705), (305, 66423), (427, 47445), (915, 22141), (1281, 15815), (2135, 9489), (3163, 6405)]