19969852

素因数分解:

$2^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{733}}^1$

素因数の和:890

約数の個数: 36

約数和(自身を含む): 41001240

約数和(自身を除く): 21031388

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 139, 196, 278, 556, 733, 973, 1466, 1946, 2932, 3892, 5131, 6811, 10262, 13622, 20524, 27244, 35917, 71834, 101887, 143668, 203774, 407548, 713209, 1426418, 2852836, 4992463, 9984926, 19969852]

約数ペア:

[(1, 19969852), (2, 9984926), (4, 4992463), (7, 2852836), (14, 1426418), (28, 713209), (49, 407548), (98, 203774), (139, 143668), (196, 101887), (278, 71834), (556, 35917), (733, 27244), (973, 20524), (1466, 13622), (1946, 10262), (2932, 6811), (3892, 5131)]