20291266818

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{294563}}^1$

素因数の和:294703

約数の個数: 48

約数和(自身を含む): 45492464160

約数和(自身を除く): 25201197342

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 89, 129, 178, 258, 267, 387, 534, 774, 801, 1602, 3827, 7654, 11481, 22962, 34443, 68886, 294563, 589126, 883689, 1767378, 2651067, 5302134, 12666209, 25332418, 26216107, 37998627, 52432214, 75997254, 78648321, 113995881, 157296642, 227991762, 235944963, 471889926, 1127292601, 2254585202, 3381877803, 6763755606, 10145633409, 20291266818]

約数ペア:

[(1, 20291266818), (2, 10145633409), (3, 6763755606), (6, 3381877803), (9, 2254585202), (18, 1127292601), (43, 471889926), (86, 235944963), (89, 227991762), (129, 157296642), (178, 113995881), (258, 78648321), (267, 75997254), (387, 52432214), (534, 37998627), (774, 26216107), (801, 25332418), (1602, 12666209), (3827, 5302134), (7654, 2651067), (11481, 1767378), (22962, 883689), (34443, 589126), (68886, 294563)]