13215951

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 23083008

約数和(自身を除く): 9867057

約数列:

[1, 3, 7, 9, 21, 31, 63, 67, 93, 101, 201, 217, 279, 303, 469, 603, 651, 707, 909, 1407, 1953, 2077, 2121, 3131, 4221, 6231, 6363, 6767, 9393, 14539, 18693, 20301, 21917, 28179, 43617, 47369, 60903, 65751, 130851, 142107, 197253, 209777, 426321, 629331, 1468439, 1887993, 4405317, 13215951]

約数ペア:

[(1, 13215951), (3, 4405317), (7, 1887993), (9, 1468439), (21, 629331), (31, 426321), (63, 209777), (67, 197253), (93, 142107), (101, 130851), (201, 65751), (217, 60903), (279, 47369), (303, 43617), (469, 28179), (603, 21917), (651, 20301), (707, 18693), (909, 14539), (1407, 9393), (1953, 6767), (2077, 6363), (2121, 6231), (3131, 4221)]