21507392

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{769}}^1$

素因数の和:823

約数の個数: 56

約数和(自身を含む): 46939200

約数和(自身を除く): 25431808

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 152, 184, 304, 368, 437, 608, 736, 769, 874, 1216, 1472, 1538, 1748, 3076, 3496, 6152, 6992, 12304, 13984, 14611, 17687, 24608, 27968, 29222, 35374, 49216, 58444, 70748, 116888, 141496, 233776, 282992, 336053, 467552, 565984, 672106, 935104, 1131968, 1344212, 2688424, 5376848, 10753696, 21507392]

約数ペア:

[(1, 21507392), (2, 10753696), (4, 5376848), (8, 2688424), (16, 1344212), (19, 1131968), (23, 935104), (32, 672106), (38, 565984), (46, 467552), (64, 336053), (76, 282992), (92, 233776), (152, 141496), (184, 116888), (304, 70748), (368, 58444), (437, 49216), (608, 35374), (736, 29222), (769, 27968), (874, 24608), (1216, 17687), (1472, 14611), (1538, 13984), (1748, 12304), (3076, 6992), (3496, 6152)]