209973204

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1697}}^1$

素因数の和:2205

約数の個数: 72

約数和(自身を含む): 608182848

約数和(自身を除く): 398209644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 491, 982, 1473, 1697, 1964, 2946, 3394, 3437, 4419, 5091, 5892, 6788, 6874, 8838, 10182, 10311, 11879, 13748, 15273, 17676, 20364, 20622, 23758, 30546, 30933, 35637, 41244, 47516, 61092, 61866, 71274, 106911, 123732, 142548, 213822, 427644, 833227, 1666454, 2499681, 3332908, 4999362, 5832589, 7499043, 9998724, 11665178, 14998086, 17497767, 23330356, 29996172, 34995534, 52493301, 69991068, 104986602, 209973204]

約数ペア:

[(1, 209973204), (2, 104986602), (3, 69991068), (4, 52493301), (6, 34995534), (7, 29996172), (9, 23330356), (12, 17497767), (14, 14998086), (18, 11665178), (21, 9998724), (28, 7499043), (36, 5832589), (42, 4999362), (63, 3332908), (84, 2499681), (126, 1666454), (252, 833227), (491, 427644), (982, 213822), (1473, 142548), (1697, 123732), (1964, 106911), (2946, 71274), (3394, 61866), (3437, 61092), (4419, 47516), (5091, 41244), (5892, 35637), (6788, 30933), (6874, 30546), (8838, 23758), (10182, 20622), (10311, 20364), (11879, 17676), (13748, 15273)]