21412278

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:621

約数の個数: 48

約数和(自身を含む): 49299120

約数和(自身を除く): 27886842

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 137, 171, 274, 342, 411, 457, 822, 914, 1233, 1371, 2466, 2603, 2742, 4113, 5206, 7809, 8226, 8683, 15618, 17366, 23427, 26049, 46854, 52098, 62609, 78147, 125218, 156294, 187827, 375654, 563481, 1126962, 1189571, 2379142, 3568713, 7137426, 10706139, 21412278]

約数ペア:

[(1, 21412278), (2, 10706139), (3, 7137426), (6, 3568713), (9, 2379142), (18, 1189571), (19, 1126962), (38, 563481), (57, 375654), (114, 187827), (137, 156294), (171, 125218), (274, 78147), (342, 62609), (411, 52098), (457, 46854), (822, 26049), (914, 23427), (1233, 17366), (1371, 15618), (2466, 8683), (2603, 8226), (2742, 7809), (4113, 5206)]