20538639933

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{19687}}^1$

素因数の和:19902

約数の個数: 48

約数和(自身を含む): 32750751744

約数和(自身を除く): 12212111811

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 151, 329, 453, 987, 1057, 2303, 3171, 6909, 7097, 7399, 19687, 21291, 22197, 49679, 59061, 137809, 149037, 347753, 413427, 925289, 964663, 1043259, 2775867, 2893989, 2972737, 6477023, 8918211, 19431069, 20809159, 45339161, 62427477, 136017483, 139718639, 145664113, 419155917, 436992339, 978030473, 2934091419, 6846213311, 20538639933]

約数ペア:

[(1, 20538639933), (3, 6846213311), (7, 2934091419), (21, 978030473), (47, 436992339), (49, 419155917), (141, 145664113), (147, 139718639), (151, 136017483), (329, 62427477), (453, 45339161), (987, 20809159), (1057, 19431069), (2303, 8918211), (3171, 6477023), (6909, 2972737), (7097, 2893989), (7399, 2775867), (19687, 1043259), (21291, 964663), (22197, 925289), (49679, 413427), (59061, 347753), (137809, 149037)]