20992568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{827}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20738632

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 167, 334, 668, 827, 1336, 1654, 3173, 3308, 6346, 6616, 12692, 15713, 25384, 31426, 62852, 125704, 138109, 276218, 552436, 1104872, 2624071, 5248142, 10496284, 20992568]

約数ペア:

[(1, 20992568), (2, 10496284), (4, 5248142), (8, 2624071), (19, 1104872), (38, 552436), (76, 276218), (152, 138109), (167, 125704), (334, 62852), (668, 31426), (827, 25384), (1336, 15713), (1654, 12692), (3173, 6616), (3308, 6346)]