20873385

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1151}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 40255488

約数和(自身を除く): 19382103

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1151, 1209, 1395, 2015, 3453, 3627, 5755, 6045, 10359, 14963, 17265, 18135, 35681, 44889, 51795, 74815, 107043, 134667, 178405, 224445, 321129, 463853, 535215, 673335, 1391559, 1605645, 2319265, 4174677, 6957795, 20873385]

約数ペア:

[(1, 20873385), (3, 6957795), (5, 4174677), (9, 2319265), (13, 1605645), (15, 1391559), (31, 673335), (39, 535215), (45, 463853), (65, 321129), (93, 224445), (117, 178405), (155, 134667), (195, 107043), (279, 74815), (403, 51795), (465, 44889), (585, 35681), (1151, 18135), (1209, 17265), (1395, 14963), (2015, 10359), (3453, 6045), (3627, 5755)]