20478982

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 34013952

約数和(自身を除く): 13534970

約数列:

[1, 2, 17, 34, 37, 73, 74, 146, 223, 446, 629, 1241, 1258, 2482, 2701, 3791, 5402, 7582, 8251, 16279, 16502, 32558, 45917, 91834, 140267, 276743, 280534, 553486, 602323, 1204646, 10239491, 20478982]

約数ペア:

[(1, 20478982), (2, 10239491), (17, 1204646), (34, 602323), (37, 553486), (73, 280534), (74, 276743), (146, 140267), (223, 91834), (446, 45917), (629, 32558), (1241, 16502), (1258, 16279), (2482, 8251), (2701, 7582), (3791, 5402)]