19901028

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{236917}}^1$

素因数の和:236931

約数の個数: 24

約数和(自身を含む): 53069632

約数和(自身を除く): 33168604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 236917, 473834, 710751, 947668, 1421502, 1658419, 2843004, 3316838, 4975257, 6633676, 9950514, 19901028]

約数ペア:

[(1, 19901028), (2, 9950514), (3, 6633676), (4, 4975257), (6, 3316838), (7, 2843004), (12, 1658419), (14, 1421502), (21, 947668), (28, 710751), (42, 473834), (84, 236917)]