21551177990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{11251}}^1$

素因数の和:11493

約数の個数: 64

約数和(自身を含む): 41375674368

約数和(自身を除く): 19824496378

約数列:

[1, 2, 5, 10, 31, 37, 62, 74, 155, 167, 185, 310, 334, 370, 835, 1147, 1670, 2294, 5177, 5735, 6179, 10354, 11251, 11470, 12358, 22502, 25885, 30895, 51770, 56255, 61790, 112510, 191549, 348781, 383098, 416287, 697562, 832574, 957745, 1743905, 1878917, 1915490, 2081435, 3487810, 3757834, 4162870, 9394585, 12904897, 18789170, 25809794, 58246427, 64524485, 69519929, 116492854, 129048970, 139039858, 291232135, 347599645, 582464270, 695199290, 2155117799, 4310235598, 10775588995, 21551177990]

約数ペア:

[(1, 21551177990), (2, 10775588995), (5, 4310235598), (10, 2155117799), (31, 695199290), (37, 582464270), (62, 347599645), (74, 291232135), (155, 139039858), (167, 129048970), (185, 116492854), (310, 69519929), (334, 64524485), (370, 58246427), (835, 25809794), (1147, 18789170), (1670, 12904897), (2294, 9394585), (5177, 4162870), (5735, 3757834), (6179, 3487810), (10354, 2081435), (11251, 1915490), (11470, 1878917), (12358, 1743905), (22502, 957745), (25885, 832574), (30895, 697562), (51770, 416287), (56255, 383098), (61790, 348781), (112510, 191549)]