20649884

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{1627}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 38290560

約数和(自身を除く): 17640676

約数列:

[1, 2, 4, 19, 38, 76, 167, 334, 668, 1627, 3173, 3254, 6346, 6508, 12692, 30913, 61826, 123652, 271709, 543418, 1086836, 5162471, 10324942, 20649884]

約数ペア:

[(1, 20649884), (2, 10324942), (4, 5162471), (19, 1086836), (38, 543418), (76, 271709), (167, 123652), (334, 61826), (668, 30913), (1627, 12692), (3173, 6508), (3254, 6346)]