20553435

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{919}}^1$

素因数の和:1008

約数の個数: 48

約数和(自身を含む): 41333760

約数和(自身を除く): 20780325

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 919, 1065, 1491, 2485, 2757, 3195, 4473, 4595, 6433, 7455, 8271, 13785, 19299, 22365, 32165, 41355, 57897, 65249, 96495, 195747, 289485, 326245, 456743, 587241, 978735, 1370229, 2283715, 2936205, 4110687, 6851145, 20553435]

約数ペア:

[(1, 20553435), (3, 6851145), (5, 4110687), (7, 2936205), (9, 2283715), (15, 1370229), (21, 978735), (35, 587241), (45, 456743), (63, 326245), (71, 289485), (105, 195747), (213, 96495), (315, 65249), (355, 57897), (497, 41355), (639, 32165), (919, 22365), (1065, 19299), (1491, 13785), (2485, 8271), (2757, 7455), (3195, 6433), (4473, 4595)]