21420046.000000000

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3061}}^1$

素因数の和:3116

約数の個数: 80

約数和(自身を含む): 273375360

約数和(自身を除く): 164011952

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 29, 44, 56, 58, 77, 88, 112, 116, 154, 176, 203, 232, 308, 319, 406, 464, 616, 638, 812, 1232, 1276, 1624, 2233, 2552, 3061, 3248, 4466, 5104, 6122, 8932, 12244, 17864, 21427, 24488, 33671, 35728, 42854, 48976, 67342, 85708, 88769, 134684, 171416, 177538, 235697, 269368, 342832, 355076, 471394, 538736, 621383, 710152, 942788, 976459, 1242766, 1420304, 1885576, 1952918, 2485532, 3771152, 3905836, 4971064, 6835213, 7811672, 9942128, 13670426, 15623344, 27340852, 54681704, 109363408]

約数ペア:

[(1, 109363408), (2, 54681704), (4, 27340852), (7, 15623344), (8, 13670426), (11, 9942128), (14, 7811672), (16, 6835213), (22, 4971064), (28, 3905836), (29, 3771152), (44, 2485532), (56, 1952918), (58, 1885576), (77, 1420304), (88, 1242766), (112, 976459), (116, 942788), (154, 710152), (176, 621383), (203, 538736), (232, 471394), (308, 355076), (319, 342832), (406, 269368), (464, 235697), (616, 177538), (638, 171416), (812, 134684), (1232, 88769), (1276, 85708), (1624, 67342), (2233, 48976), (2552, 42854), (3061, 35728), (3248, 33671), (4466, 24488), (5104, 21427), (6122, 17864), (8932, 12244)]