21388850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2657}}^1$

素因数の和:2699

約数の個数: 48

約数和(自身を含む): 47461248

約数和(自身を除く): 26072398

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 115, 161, 175, 230, 322, 350, 575, 805, 1150, 1610, 2657, 4025, 5314, 8050, 13285, 18599, 26570, 37198, 61111, 66425, 92995, 122222, 132850, 185990, 305555, 427777, 464975, 611110, 855554, 929950, 1527775, 2138885, 3055550, 4277770, 10694425, 21388850]

約数ペア:

[(1, 21388850), (2, 10694425), (5, 4277770), (7, 3055550), (10, 2138885), (14, 1527775), (23, 929950), (25, 855554), (35, 611110), (46, 464975), (50, 427777), (70, 305555), (115, 185990), (161, 132850), (175, 122222), (230, 92995), (322, 66425), (350, 61111), (575, 37198), (805, 26570), (1150, 18599), (1610, 13285), (2657, 8050), (4025, 5314)]