19853036

素因数分解:

$2^2\times 7^2\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:726

約数の個数: 36

約数和(自身を含む): 40698000

約数和(自身を除く): 20844964

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 398, 509, 796, 1018, 1393, 2036, 2786, 3563, 5572, 7126, 9751, 14252, 19502, 24941, 39004, 49882, 99764, 101291, 202582, 405164, 709037, 1418074, 2836148, 4963259, 9926518, 19853036]

約数ペア:

[(1, 19853036), (2, 9926518), (4, 4963259), (7, 2836148), (14, 1418074), (28, 709037), (49, 405164), (98, 202582), (196, 101291), (199, 99764), (398, 49882), (509, 39004), (796, 24941), (1018, 19502), (1393, 14252), (2036, 9751), (2786, 7126), (3563, 5572)]