20149388

素因数分解:

$2^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{461}}^1$

素因数の和:702

約数の個数: 36

約数和(自身を含む): 41291712

約数和(自身を除く): 21142324

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 223, 446, 461, 892, 922, 1561, 1844, 3122, 3227, 6244, 6454, 10927, 12908, 21854, 22589, 43708, 45178, 90356, 102803, 205606, 411212, 719621, 1439242, 2878484, 5037347, 10074694, 20149388]

約数ペア:

[(1, 20149388), (2, 10074694), (4, 5037347), (7, 2878484), (14, 1439242), (28, 719621), (49, 411212), (98, 205606), (196, 102803), (223, 90356), (446, 45178), (461, 43708), (892, 22589), (922, 21854), (1561, 12908), (1844, 10927), (3122, 6454), (3227, 6244)]