21000966516

素因数分解:

$2^2\times 3^2\times {\mathrm{149}}^1\times {\mathrm{3915169}}^1$

素因数の和:3915328

約数の個数: 36

約数和(自身を含む): 53442070500

約数和(自身を除く): 32441103984

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 149, 298, 447, 596, 894, 1341, 1788, 2682, 5364, 3915169, 7830338, 11745507, 15660676, 23491014, 35236521, 46982028, 70473042, 140946084, 583360181, 1166720362, 1750080543, 2333440724, 3500161086, 5250241629, 7000322172, 10500483258, 21000966516]

約数ペア:

[(1, 21000966516), (2, 10500483258), (3, 7000322172), (4, 5250241629), (6, 3500161086), (9, 2333440724), (12, 1750080543), (18, 1166720362), (36, 583360181), (149, 140946084), (298, 70473042), (447, 46982028), (596, 35236521), (894, 23491014), (1341, 15660676), (1788, 11745507), (2682, 7830338), (5364, 3915169)]