21628424

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:953

約数の個数: 32

約数和(自身を含む): 42168600

約数和(自身を除く): 20540176

約数列:

[1, 2, 4, 8, 37, 74, 89, 148, 178, 296, 356, 712, 821, 1642, 3284, 3293, 6568, 6586, 13172, 26344, 30377, 60754, 73069, 121508, 146138, 243016, 292276, 584552, 2703553, 5407106, 10814212, 21628424]

約数ペア:

[(1, 21628424), (2, 10814212), (4, 5407106), (8, 2703553), (37, 584552), (74, 292276), (89, 243016), (148, 146138), (178, 121508), (296, 73069), (356, 60754), (712, 30377), (821, 26344), (1642, 13172), (3284, 6586), (3293, 6568)]