19900692

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{503}}^1$

素因数の和:677

約数の個数: 72

約数和(自身を含む): 57972096

約数和(自身を除く): 38071404

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 157, 252, 314, 471, 503, 628, 942, 1006, 1099, 1413, 1509, 1884, 2012, 2198, 2826, 3018, 3297, 3521, 4396, 4527, 5652, 6036, 6594, 7042, 9054, 9891, 10563, 13188, 14084, 18108, 19782, 21126, 31689, 39564, 42252, 63378, 78971, 126756, 157942, 236913, 315884, 473826, 552797, 710739, 947652, 1105594, 1421478, 1658391, 2211188, 2842956, 3316782, 4975173, 6633564, 9950346, 19900692]

約数ペア:

[(1, 19900692), (2, 9950346), (3, 6633564), (4, 4975173), (6, 3316782), (7, 2842956), (9, 2211188), (12, 1658391), (14, 1421478), (18, 1105594), (21, 947652), (28, 710739), (36, 552797), (42, 473826), (63, 315884), (84, 236913), (126, 157942), (157, 126756), (252, 78971), (314, 63378), (471, 42252), (503, 39564), (628, 31689), (942, 21126), (1006, 19782), (1099, 18108), (1413, 14084), (1509, 13188), (1884, 10563), (2012, 9891), (2198, 9054), (2826, 7042), (3018, 6594), (3297, 6036), (3521, 5652), (4396, 4527)]