17980984

素因数分解:

$2^3\times 7^1\times {\mathrm{547}}^1\times {\mathrm{587}}^1$

素因数の和:1147

約数の個数: 32

約数和(自身を含む): 38666880

約数和(自身を除く): 20685896

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 547, 587, 1094, 1174, 2188, 2348, 3829, 4109, 4376, 4696, 7658, 8218, 15316, 16436, 30632, 32872, 321089, 642178, 1284356, 2247623, 2568712, 4495246, 8990492, 17980984]

約数ペア:

[(1, 17980984), (2, 8990492), (4, 4495246), (7, 2568712), (8, 2247623), (14, 1284356), (28, 642178), (56, 321089), (547, 32872), (587, 30632), (1094, 16436), (1174, 15316), (2188, 8218), (2348, 7658), (3829, 4696), (4109, 4376)]