1971365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 2621376

約数和(自身を除く): 650011

約数列:

[1, 5, 11, 55, 73, 365, 491, 803, 2455, 4015, 5401, 27005, 35843, 179215, 394273, 1971365]

約数ペア:

[(1, 1971365), (5, 394273), (11, 179215), (55, 35843), (73, 27005), (365, 5401), (491, 4015), (803, 2455)]