21286476

素因数分解:

$2^2\times 3^4\times {\mathrm{65699}}^1$

素因数の和:65715

約数の個数: 30

約数和(自身を含む): 55647900

約数和(自身を除く): 34361424

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 65699, 131398, 197097, 262796, 394194, 591291, 788388, 1182582, 1773873, 2365164, 3547746, 5321619, 7095492, 10643238, 21286476]

約数ペア:

[(1, 21286476), (2, 10643238), (3, 7095492), (4, 5321619), (6, 3547746), (9, 2365164), (12, 1773873), (18, 1182582), (27, 788388), (36, 591291), (54, 394194), (81, 262796), (108, 197097), (162, 131398), (324, 65699)]