1821986747

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{2187259}}^1$

素因数の和:2187290

約数の個数: 12

約数和(自身を含む): 2244128760

約数和(自身を除く): 422142013

約数列:

[1, 7, 17, 49, 119, 833, 2187259, 15310813, 37183403, 107175691, 260283821, 1821986747]

約数ペア:

[(1, 1821986747), (7, 260283821), (17, 107175691), (49, 37183403), (119, 15310813), (833, 2187259)]