28016828

素因数分解:

$2^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{641}}^1$

素因数の和:882

約数の個数: 36

約数和(自身を含む): 57379392

約数和(自身を除く): 29362564

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 223, 446, 641, 892, 1282, 1561, 2564, 3122, 4487, 6244, 8974, 10927, 17948, 21854, 31409, 43708, 62818, 125636, 142943, 285886, 571772, 1000601, 2001202, 4002404, 7004207, 14008414, 28016828]

約数ペア:

[(1, 28016828), (2, 14008414), (4, 7004207), (7, 4002404), (14, 2001202), (28, 1000601), (49, 571772), (98, 285886), (196, 142943), (223, 125636), (446, 62818), (641, 43708), (892, 31409), (1282, 21854), (1561, 17948), (2564, 10927), (3122, 8974), (4487, 6244)]