21821562

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{2749}}^1$

素因数の和:2777

約数の個数: 60

約数和(自身を含む): 56900250

約数和(自身を除く): 35078688

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 81, 98, 126, 147, 162, 189, 294, 378, 441, 567, 882, 1134, 1323, 2646, 2749, 3969, 5498, 7938, 8247, 16494, 19243, 24741, 38486, 49482, 57729, 74223, 115458, 134701, 148446, 173187, 222669, 269402, 346374, 404103, 445338, 519561, 808206, 1039122, 1212309, 1558683, 2424618, 3117366, 3636927, 7273854, 10910781, 21821562]

約数ペア:

[(1, 21821562), (2, 10910781), (3, 7273854), (6, 3636927), (7, 3117366), (9, 2424618), (14, 1558683), (18, 1212309), (21, 1039122), (27, 808206), (42, 519561), (49, 445338), (54, 404103), (63, 346374), (81, 269402), (98, 222669), (126, 173187), (147, 148446), (162, 134701), (189, 115458), (294, 74223), (378, 57729), (441, 49482), (567, 38486), (882, 24741), (1134, 19243), (1323, 16494), (2646, 8247), (2749, 7938), (3969, 5498)]