21062835

素因数分解:

$3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 38141136

約数和(自身を除く): 17078301

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 131, 135, 393, 397, 405, 655, 1179, 1191, 1965, 1985, 3537, 3573, 5895, 5955, 10611, 10719, 17685, 17865, 32157, 52007, 53055, 53595, 156021, 160785, 260035, 468063, 780105, 1404189, 2340315, 4212567, 7020945, 21062835]

約数ペア:

[(1, 21062835), (3, 7020945), (5, 4212567), (9, 2340315), (15, 1404189), (27, 780105), (45, 468063), (81, 260035), (131, 160785), (135, 156021), (393, 53595), (397, 53055), (405, 52007), (655, 32157), (1179, 17865), (1191, 17685), (1965, 10719), (1985, 10611), (3537, 5955), (3573, 5895)]