209331215

素因数分解:

$5^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1\times {\mathrm{953}}^1$

素因数の和:1378

約数の個数: 16

約数和(自身を含む): 253870848

約数和(自身を除く): 44539633

約数列:

[1, 5, 197, 223, 953, 985, 1115, 4765, 43931, 187741, 212519, 219655, 938705, 1062595, 41866243, 209331215]

約数ペア:

[(1, 209331215), (5, 41866243), (197, 1062595), (223, 938705), (953, 219655), (985, 212519), (1115, 187741), (4765, 43931)]