81439806

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{21787}}^1$

素因数の和:21888

約数の個数: 32

約数和(自身を含む): 188248320

約数和(自身を除く): 106808514

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 89, 178, 267, 534, 623, 1246, 1869, 3738, 21787, 43574, 65361, 130722, 152509, 305018, 457527, 915054, 1939043, 3878086, 5817129, 11634258, 13573301, 27146602, 40719903, 81439806]

約数ペア:

[(1, 81439806), (2, 40719903), (3, 27146602), (6, 13573301), (7, 11634258), (14, 5817129), (21, 3878086), (42, 1939043), (89, 915054), (178, 457527), (267, 305018), (534, 152509), (623, 130722), (1246, 65361), (1869, 43574), (3738, 21787)]