21080454

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1\times {\mathrm{353}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 43584480

約数和(自身を除く): 22504026

約数列:

[1, 2, 3, 6, 37, 74, 111, 222, 269, 353, 538, 706, 807, 1059, 1614, 2118, 9953, 13061, 19906, 26122, 29859, 39183, 59718, 78366, 94957, 189914, 284871, 569742, 3513409, 7026818, 10540227, 21080454]

約数ペア:

[(1, 21080454), (2, 10540227), (3, 7026818), (6, 3513409), (37, 569742), (74, 284871), (111, 189914), (222, 94957), (269, 78366), (353, 59718), (538, 39183), (706, 29859), (807, 26122), (1059, 19906), (1614, 13061), (2118, 9953)]