20065878

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2243}}^1$

素因数の和:2329

約数の個数: 48

約数和(自身を含む): 50409216

約数和(自身を除く): 30343338

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 71, 126, 142, 213, 426, 497, 639, 994, 1278, 1491, 2243, 2982, 4473, 4486, 6729, 8946, 13458, 15701, 20187, 31402, 40374, 47103, 94206, 141309, 159253, 282618, 318506, 477759, 955518, 1114771, 1433277, 2229542, 2866554, 3344313, 6688626, 10032939, 20065878]

約数ペア:

[(1, 20065878), (2, 10032939), (3, 6688626), (6, 3344313), (7, 2866554), (9, 2229542), (14, 1433277), (18, 1114771), (21, 955518), (42, 477759), (63, 318506), (71, 282618), (126, 159253), (142, 141309), (213, 94206), (426, 47103), (497, 40374), (639, 31402), (994, 20187), (1278, 15701), (1491, 13458), (2243, 8946), (2982, 6729), (4473, 4486)]