21796172

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{167}}^1\times {\mathrm{487}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 39024384

約数和(自身を除く): 17228212

約数列:

[1, 2, 4, 67, 134, 167, 268, 334, 487, 668, 974, 1948, 11189, 22378, 32629, 44756, 65258, 81329, 130516, 162658, 325316, 5449043, 10898086, 21796172]

約数ペア:

[(1, 21796172), (2, 10898086), (4, 5449043), (67, 325316), (134, 162658), (167, 130516), (268, 81329), (334, 65258), (487, 44756), (668, 32629), (974, 22378), (1948, 11189)]