21720432890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{50069}}^1$

素因数の和:50207

約数の個数: 64

約数和(自身を含む): 43606563840

約数和(自身を除く): 21886130950

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 71, 94, 130, 142, 235, 355, 470, 611, 710, 923, 1222, 1846, 3055, 3337, 4615, 6110, 6674, 9230, 16685, 33370, 43381, 50069, 86762, 100138, 216905, 250345, 433810, 500690, 650897, 1301794, 2353243, 3254485, 3554899, 4706486, 6508970, 7109798, 11766215, 17774495, 23532430, 30592159, 35548990, 46213687, 61184318, 92427374, 152960795, 167080253, 231068435, 305921590, 334160506, 462136870, 835401265, 1670802530, 2172043289, 4344086578, 10860216445, 21720432890]

約数ペア:

[(1, 21720432890), (2, 10860216445), (5, 4344086578), (10, 2172043289), (13, 1670802530), (26, 835401265), (47, 462136870), (65, 334160506), (71, 305921590), (94, 231068435), (130, 167080253), (142, 152960795), (235, 92427374), (355, 61184318), (470, 46213687), (611, 35548990), (710, 30592159), (923, 23532430), (1222, 17774495), (1846, 11766215), (3055, 7109798), (3337, 6508970), (4615, 4706486), (6110, 3554899), (6674, 3254485), (9230, 2353243), (16685, 1301794), (33370, 650897), (43381, 500690), (50069, 433810), (86762, 250345), (100138, 216905)]