20746796

素因数分解:

$2^2\times 7^2\times {\mathrm{151}}^1\times {\mathrm{701}}^1$

素因数の和:870

約数の個数: 36

約数和(自身を含む): 42574896

約数和(自身を除く): 21828100

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 151, 196, 302, 604, 701, 1057, 1402, 2114, 2804, 4228, 4907, 7399, 9814, 14798, 19628, 29596, 34349, 68698, 105851, 137396, 211702, 423404, 740957, 1481914, 2963828, 5186699, 10373398, 20746796]

約数ペア:

[(1, 20746796), (2, 10373398), (4, 5186699), (7, 2963828), (14, 1481914), (28, 740957), (49, 423404), (98, 211702), (151, 137396), (196, 105851), (302, 68698), (604, 34349), (701, 29596), (1057, 19628), (1402, 14798), (2114, 9814), (2804, 7399), (4228, 4907)]