27887517

素因数分解:

$3^3\times 7^2\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 48755520

約数和(自身を除く): 20868003

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 107, 147, 189, 197, 321, 441, 591, 749, 963, 1323, 1379, 1773, 2247, 2889, 4137, 5243, 5319, 6741, 9653, 12411, 15729, 20223, 21079, 28959, 37233, 47187, 63237, 86877, 141561, 147553, 189711, 260631, 442659, 569133, 1032871, 1327977, 3098613, 3983931, 9295839, 27887517]

約数ペア:

[(1, 27887517), (3, 9295839), (7, 3983931), (9, 3098613), (21, 1327977), (27, 1032871), (49, 569133), (63, 442659), (107, 260631), (147, 189711), (189, 147553), (197, 141561), (321, 86877), (441, 63237), (591, 47187), (749, 37233), (963, 28959), (1323, 21079), (1379, 20223), (1773, 15729), (2247, 12411), (2889, 9653), (4137, 6741), (5243, 5319)]