21000891290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1547597}}^1$

素因数の和:1547686

約数の個数: 32

約数和(自身を含む): 40113740160

約数和(自身を除く): 19112848870

約数列:

[1, 2, 5, 10, 23, 46, 59, 115, 118, 230, 295, 590, 1357, 2714, 6785, 13570, 1547597, 3095194, 7737985, 15475970, 35594731, 71189462, 91308223, 177973655, 182616446, 355947310, 456541115, 913082230, 2100089129, 4200178258, 10500445645, 21000891290]

約数ペア:

[(1, 21000891290), (2, 10500445645), (5, 4200178258), (10, 2100089129), (23, 913082230), (46, 456541115), (59, 355947310), (115, 182616446), (118, 177973655), (230, 91308223), (295, 71189462), (590, 35594731), (1357, 15475970), (2714, 7737985), (6785, 3095194), (13570, 1547597)]