21891002

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 21239878

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 47, 94, 103, 119, 133, 206, 238, 266, 323, 329, 646, 658, 721, 799, 893, 1442, 1598, 1751, 1786, 1957, 2261, 3502, 3914, 4522, 4841, 5593, 6251, 9682, 11186, 12257, 12502, 13699, 15181, 24514, 27398, 30362, 33269, 33887, 66538, 67774, 82297, 91979, 106267, 164594, 183958, 212534, 232883, 465766, 576079, 643853, 1152158, 1287706, 1563643, 3127286, 10945501, 21891002]

約数ペア:

[(1, 21891002), (2, 10945501), (7, 3127286), (14, 1563643), (17, 1287706), (19, 1152158), (34, 643853), (38, 576079), (47, 465766), (94, 232883), (103, 212534), (119, 183958), (133, 164594), (206, 106267), (238, 91979), (266, 82297), (323, 67774), (329, 66538), (646, 33887), (658, 33269), (721, 30362), (799, 27398), (893, 24514), (1442, 15181), (1598, 13699), (1751, 12502), (1786, 12257), (1957, 11186), (2261, 9682), (3502, 6251), (3914, 5593), (4522, 4841)]