28148379

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2131}}^1$

素因数の和:2195

約数の個数: 32

約数和(自身を含む): 46665216

約数和(自身を除く): 18516837

約数列:

[1, 3, 7, 17, 21, 37, 51, 111, 119, 259, 357, 629, 777, 1887, 2131, 4403, 6393, 13209, 14917, 36227, 44751, 78847, 108681, 236541, 253589, 551929, 760767, 1340399, 1655787, 4021197, 9382793, 28148379]

約数ペア:

[(1, 28148379), (3, 9382793), (7, 4021197), (17, 1655787), (21, 1340399), (37, 760767), (51, 551929), (111, 253589), (119, 236541), (259, 108681), (357, 78847), (629, 44751), (777, 36227), (1887, 14917), (2131, 13209), (4403, 6393)]