20842206

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 52462080

約数和(自身を除く): 31619874

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 197, 229, 231, 394, 458, 462, 591, 687, 1182, 1374, 1379, 1603, 2167, 2519, 2758, 3206, 4137, 4334, 4809, 5038, 6501, 7557, 8274, 9618, 13002, 15114, 15169, 17633, 30338, 35266, 45113, 45507, 52899, 90226, 91014, 105798, 135339, 270678, 315791, 496243, 631582, 947373, 992486, 1488729, 1894746, 2977458, 3473701, 6947402, 10421103, 20842206]

約数ペア:

[(1, 20842206), (2, 10421103), (3, 6947402), (6, 3473701), (7, 2977458), (11, 1894746), (14, 1488729), (21, 992486), (22, 947373), (33, 631582), (42, 496243), (66, 315791), (77, 270678), (154, 135339), (197, 105798), (229, 91014), (231, 90226), (394, 52899), (458, 45507), (462, 45113), (591, 35266), (687, 30338), (1182, 17633), (1374, 15169), (1379, 15114), (1603, 13002), (2167, 9618), (2519, 8274), (2758, 7557), (3206, 6501), (4137, 5038), (4334, 4809)]