21402650

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:575

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 21344614

約数列:

[1, 2, 5, 10, 23, 25, 37, 46, 50, 74, 115, 185, 230, 370, 503, 575, 851, 925, 1006, 1150, 1702, 1850, 2515, 4255, 5030, 8510, 11569, 12575, 18611, 21275, 23138, 25150, 37222, 42550, 57845, 93055, 115690, 186110, 289225, 428053, 465275, 578450, 856106, 930550, 2140265, 4280530, 10701325, 21402650]

約数ペア:

[(1, 21402650), (2, 10701325), (5, 4280530), (10, 2140265), (23, 930550), (25, 856106), (37, 578450), (46, 465275), (50, 428053), (74, 289225), (115, 186110), (185, 115690), (230, 93055), (370, 57845), (503, 42550), (575, 37222), (851, 25150), (925, 23138), (1006, 21275), (1150, 18611), (1702, 12575), (1850, 11569), (2515, 8510), (4255, 5030)]