17955420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{42751}}^1$

素因数の和:42770

約数の個数: 48

約数和(自身を含む): 57458688

約数和(自身を除く): 39503268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 42751, 85502, 128253, 171004, 213755, 256506, 299257, 427510, 513012, 598514, 641265, 855020, 897771, 1197028, 1282530, 1496285, 1795542, 2565060, 2992570, 3591084, 4488855, 5985140, 8977710, 17955420]

約数ペア:

[(1, 17955420), (2, 8977710), (3, 5985140), (4, 4488855), (5, 3591084), (6, 2992570), (7, 2565060), (10, 1795542), (12, 1496285), (14, 1282530), (15, 1197028), (20, 897771), (21, 855020), (28, 641265), (30, 598514), (35, 513012), (42, 427510), (60, 299257), (70, 256506), (84, 213755), (105, 171004), (140, 128253), (210, 85502), (420, 42751)]