21597898

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 16722230

約数列:

[1, 2, 7, 14, 41, 82, 191, 197, 287, 382, 394, 574, 1337, 1379, 2674, 2758, 7831, 8077, 15662, 16154, 37627, 54817, 56539, 75254, 109634, 113078, 263389, 526778, 1542707, 3085414, 10798949, 21597898]

約数ペア:

[(1, 21597898), (2, 10798949), (7, 3085414), (14, 1542707), (41, 526778), (82, 263389), (191, 113078), (197, 109634), (287, 75254), (382, 56539), (394, 54817), (574, 37627), (1337, 16154), (1379, 15662), (2674, 8077), (2758, 7831)]