20412826

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 36312192

約数和(自身を除く): 15899366

約数列:

[1, 2, 7, 14, 37, 74, 157, 251, 259, 314, 502, 518, 1099, 1757, 2198, 3514, 5809, 9287, 11618, 18574, 39407, 40663, 65009, 78814, 81326, 130018, 275849, 551698, 1458059, 2916118, 10206413, 20412826]

約数ペア:

[(1, 20412826), (2, 10206413), (7, 2916118), (14, 1458059), (37, 551698), (74, 275849), (157, 130018), (251, 81326), (259, 78814), (314, 65009), (502, 40663), (518, 39407), (1099, 18574), (1757, 11618), (2198, 9287), (3514, 5809)]