221288291

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{3911}}^1$

素因数の和:4114

約数の個数: 16

約数和(自身を含む): 259130880

約数和(自身を除く): 37842589

約数列:

[1, 7, 59, 137, 413, 959, 3911, 8083, 27377, 56581, 230749, 535807, 1615243, 3750649, 31612613, 221288291]

約数ペア:

[(1, 221288291), (7, 31612613), (59, 3750649), (137, 1615243), (413, 535807), (959, 230749), (3911, 56581), (8083, 27377)]