18888345

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{983}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 38068992

約数和(自身を除く): 19180647

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 61, 63, 105, 183, 305, 315, 427, 549, 915, 983, 1281, 2135, 2745, 2949, 3843, 4915, 6405, 6881, 8847, 14745, 19215, 20643, 34405, 44235, 59963, 61929, 103215, 179889, 299815, 309645, 419741, 539667, 899445, 1259223, 2098705, 2698335, 3777669, 6296115, 18888345]

約数ペア:

[(1, 18888345), (3, 6296115), (5, 3777669), (7, 2698335), (9, 2098705), (15, 1259223), (21, 899445), (35, 539667), (45, 419741), (61, 309645), (63, 299815), (105, 179889), (183, 103215), (305, 61929), (315, 59963), (427, 44235), (549, 34405), (915, 20643), (983, 19215), (1281, 14745), (2135, 8847), (2745, 6881), (2949, 6405), (3843, 4915)]