20163741668

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1941061}}^1$

素因数の和:1941132

約数の個数: 36

約数和(自身を含む): 41822121852

約数和(自身を除く): 21658380184

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 196, 212, 371, 742, 1484, 2597, 5194, 10388, 1941061, 3882122, 7764244, 13587427, 27174854, 54349708, 95111989, 102876233, 190223978, 205752466, 380447956, 411504932, 720133631, 1440267262, 2880534524, 5040935417, 10081870834, 20163741668]

約数ペア:

[(1, 20163741668), (2, 10081870834), (4, 5040935417), (7, 2880534524), (14, 1440267262), (28, 720133631), (49, 411504932), (53, 380447956), (98, 205752466), (106, 190223978), (196, 102876233), (212, 95111989), (371, 54349708), (742, 27174854), (1484, 13587427), (2597, 7764244), (5194, 3882122), (10388, 1941061)]