21691796

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 46368000

約数和(自身を除く): 24676204

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 199, 229, 238, 398, 458, 476, 796, 916, 1393, 1603, 2786, 3206, 3383, 3893, 5572, 6412, 6766, 7786, 13532, 15572, 23681, 27251, 45571, 47362, 54502, 91142, 94724, 109004, 182284, 318997, 637994, 774707, 1275988, 1549414, 3098828, 5422949, 10845898, 21691796]

約数ペア:

[(1, 21691796), (2, 10845898), (4, 5422949), (7, 3098828), (14, 1549414), (17, 1275988), (28, 774707), (34, 637994), (68, 318997), (119, 182284), (199, 109004), (229, 94724), (238, 91142), (398, 54502), (458, 47362), (476, 45571), (796, 27251), (916, 23681), (1393, 15572), (1603, 13532), (2786, 7786), (3206, 6766), (3383, 6412), (3893, 5572)]