20975484

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{449}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 52164000

約数和(自身を除く): 31188516

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 229, 449, 458, 687, 898, 916, 1347, 1374, 1796, 2694, 2748, 3893, 5388, 7633, 7786, 11679, 15266, 15572, 22899, 23358, 30532, 45798, 46716, 91596, 102821, 205642, 308463, 411284, 616926, 1233852, 1747957, 3495914, 5243871, 6991828, 10487742, 20975484]

約数ペア:

[(1, 20975484), (2, 10487742), (3, 6991828), (4, 5243871), (6, 3495914), (12, 1747957), (17, 1233852), (34, 616926), (51, 411284), (68, 308463), (102, 205642), (204, 102821), (229, 91596), (449, 46716), (458, 45798), (687, 30532), (898, 23358), (916, 22899), (1347, 15572), (1374, 15266), (1796, 11679), (2694, 7786), (2748, 7633), (3893, 5388)]