21548450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 51960960

約数和(自身を除く): 30412510

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 29, 35, 50, 55, 58, 70, 77, 110, 145, 154, 175, 193, 203, 275, 290, 319, 350, 385, 386, 406, 550, 638, 725, 770, 965, 1015, 1351, 1450, 1595, 1925, 1930, 2030, 2123, 2233, 2702, 3190, 3850, 4246, 4466, 4825, 5075, 5597, 6755, 7975, 9650, 10150, 10615, 11165, 11194, 13510, 14861, 15950, 21230, 22330, 27985, 29722, 33775, 39179, 53075, 55825, 55970, 61567, 67550, 74305, 78358, 106150, 111650, 123134, 139925, 148610, 195895, 279850, 307835, 371525, 391790, 430969, 615670, 743050, 861938, 979475, 1539175, 1958950, 2154845, 3078350, 4309690, 10774225, 21548450]

約数ペア:

[(1, 21548450), (2, 10774225), (5, 4309690), (7, 3078350), (10, 2154845), (11, 1958950), (14, 1539175), (22, 979475), (25, 861938), (29, 743050), (35, 615670), (50, 430969), (55, 391790), (58, 371525), (70, 307835), (77, 279850), (110, 195895), (145, 148610), (154, 139925), (175, 123134), (193, 111650), (203, 106150), (275, 78358), (290, 74305), (319, 67550), (350, 61567), (385, 55970), (386, 55825), (406, 53075), (550, 39179), (638, 33775), (725, 29722), (770, 27985), (965, 22330), (1015, 21230), (1351, 15950), (1450, 14861), (1595, 13510), (1925, 11194), (1930, 11165), (2030, 10615), (2123, 10150), (2233, 9650), (2702, 7975), (3190, 6755), (3850, 5597), (4246, 5075), (4466, 4825)]