20625858

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1427}}^1$

素因数の和:1519

約数の個数: 48

約数和(自身を含む): 49454496

約数和(自身を除く): 28828638

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 73, 99, 146, 198, 219, 438, 657, 803, 1314, 1427, 1606, 2409, 2854, 4281, 4818, 7227, 8562, 12843, 14454, 15697, 25686, 31394, 47091, 94182, 104171, 141273, 208342, 282546, 312513, 625026, 937539, 1145881, 1875078, 2291762, 3437643, 6875286, 10312929, 20625858]

約数ペア:

[(1, 20625858), (2, 10312929), (3, 6875286), (6, 3437643), (9, 2291762), (11, 1875078), (18, 1145881), (22, 937539), (33, 625026), (66, 312513), (73, 282546), (99, 208342), (146, 141273), (198, 104171), (219, 94182), (438, 47091), (657, 31394), (803, 25686), (1314, 15697), (1427, 14454), (1606, 12843), (2409, 8562), (2854, 7227), (4281, 4818)]