2019127905

素因数分解:

$3^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{21397}}^1$

素因数の和:21647

約数の個数: 40

約数和(自身を含む): 3635177832

約数和(自身を除く): 1616049927

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 233, 405, 699, 1165, 2097, 3495, 6291, 10485, 18873, 21397, 31455, 64191, 94365, 106985, 192573, 320955, 577719, 962865, 1733157, 2888595, 4985501, 8665785, 14956503, 24927505, 44869509, 74782515, 134608527, 224347545, 403825581, 673042635, 2019127905]

約数ペア:

[(1, 2019127905), (3, 673042635), (5, 403825581), (9, 224347545), (15, 134608527), (27, 74782515), (45, 44869509), (81, 24927505), (135, 14956503), (233, 8665785), (405, 4985501), (699, 2888595), (1165, 1733157), (2097, 962865), (3495, 577719), (6291, 320955), (10485, 192573), (18873, 106985), (21397, 94365), (31455, 64191)]