21355236

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1021}}^1$

素因数の和:1121

約数の個数: 72

約数和(自身を含む): 62497344

約数和(自身を除く): 41142108

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 83, 84, 126, 166, 249, 252, 332, 498, 581, 747, 996, 1021, 1162, 1494, 1743, 2042, 2324, 2988, 3063, 3486, 4084, 5229, 6126, 6972, 7147, 9189, 10458, 12252, 14294, 18378, 20916, 21441, 28588, 36756, 42882, 64323, 84743, 85764, 128646, 169486, 254229, 257292, 338972, 508458, 593201, 762687, 1016916, 1186402, 1525374, 1779603, 2372804, 3050748, 3559206, 5338809, 7118412, 10677618, 21355236]

約数ペア:

[(1, 21355236), (2, 10677618), (3, 7118412), (4, 5338809), (6, 3559206), (7, 3050748), (9, 2372804), (12, 1779603), (14, 1525374), (18, 1186402), (21, 1016916), (28, 762687), (36, 593201), (42, 508458), (63, 338972), (83, 257292), (84, 254229), (126, 169486), (166, 128646), (249, 85764), (252, 84743), (332, 64323), (498, 42882), (581, 36756), (747, 28588), (996, 21441), (1021, 20916), (1162, 18378), (1494, 14294), (1743, 12252), (2042, 10458), (2324, 9189), (2988, 7147), (3063, 6972), (3486, 6126), (4084, 5229)]