16987782

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{641}}^1$

素因数の和:1284

約数の個数: 32

約数和(自身を含む): 38951424

約数和(自身を除く): 21963642

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 631, 641, 1262, 1282, 1893, 1923, 3786, 3846, 4417, 4487, 8834, 8974, 13251, 13461, 26502, 26922, 404471, 808942, 1213413, 2426826, 2831297, 5662594, 8493891, 16987782]

約数ペア:

[(1, 16987782), (2, 8493891), (3, 5662594), (6, 2831297), (7, 2426826), (14, 1213413), (21, 808942), (42, 404471), (631, 26922), (641, 26502), (1262, 13461), (1282, 13251), (1893, 8974), (1923, 8834), (3786, 4487), (3846, 4417)]