21048070

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1579}}^1$

素因数の和:1660

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 18995450

約数列:

[1, 2, 5, 10, 31, 43, 62, 86, 155, 215, 310, 430, 1333, 1579, 2666, 3158, 6665, 7895, 13330, 15790, 48949, 67897, 97898, 135794, 244745, 339485, 489490, 678970, 2104807, 4209614, 10524035, 21048070]

約数ペア:

[(1, 21048070), (2, 10524035), (5, 4209614), (10, 2104807), (31, 678970), (43, 489490), (62, 339485), (86, 244745), (155, 135794), (215, 97898), (310, 67897), (430, 48949), (1333, 15790), (1579, 13330), (2666, 7895), (3158, 6665)]