20213578

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1103}}^1$

素因数の和:1147

約数の個数: 48

約数和(自身を含む): 40777344

約数和(自身を除く): 20563766

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 49, 77, 98, 119, 154, 187, 238, 374, 539, 833, 1078, 1103, 1309, 1666, 2206, 2618, 7721, 9163, 12133, 15442, 18326, 18751, 24266, 37502, 54047, 84931, 108094, 131257, 169862, 206261, 262514, 412522, 594517, 918799, 1189034, 1443827, 1837598, 2887654, 10106789, 20213578]

約数ペア:

[(1, 20213578), (2, 10106789), (7, 2887654), (11, 1837598), (14, 1443827), (17, 1189034), (22, 918799), (34, 594517), (49, 412522), (77, 262514), (98, 206261), (119, 169862), (154, 131257), (187, 108094), (238, 84931), (374, 54047), (539, 37502), (833, 24266), (1078, 18751), (1103, 18326), (1309, 15442), (1666, 12133), (2206, 9163), (2618, 7721)]