21036155

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 29998080

約数和(自身を除く): 8961925

約数列:

[1, 5, 7, 35, 59, 61, 167, 295, 305, 413, 427, 835, 1169, 2065, 2135, 3599, 5845, 9853, 10187, 17995, 25193, 49265, 50935, 68971, 71309, 125965, 344855, 356545, 601033, 3005165, 4207231, 21036155]

約数ペア:

[(1, 21036155), (5, 4207231), (7, 3005165), (35, 601033), (59, 356545), (61, 344855), (167, 125965), (295, 71309), (305, 68971), (413, 50935), (427, 49265), (835, 25193), (1169, 17995), (2065, 10187), (2135, 9853), (3599, 5845)]