21979538

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 19388782

約数列:

[1, 2, 7, 14, 17, 34, 49, 79, 98, 119, 158, 167, 238, 334, 553, 833, 1106, 1169, 1343, 1666, 2338, 2686, 2839, 3871, 5678, 7742, 8183, 9401, 13193, 16366, 18802, 19873, 26386, 39746, 65807, 92351, 131614, 139111, 184702, 224281, 278222, 448562, 646457, 1292914, 1569967, 3139934, 10989769, 21979538]

約数ペア:

[(1, 21979538), (2, 10989769), (7, 3139934), (14, 1569967), (17, 1292914), (34, 646457), (49, 448562), (79, 278222), (98, 224281), (119, 184702), (158, 139111), (167, 131614), (238, 92351), (334, 65807), (553, 39746), (833, 26386), (1106, 19873), (1169, 18802), (1343, 16366), (1666, 13193), (2338, 9401), (2686, 8183), (2839, 7742), (3871, 5678)]