18451636

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2003}}^1$

素因数の和:2068

約数の個数: 36

約数和(自身を含む): 38380608

約数和(自身を除く): 19928972

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 658, 1316, 2003, 2303, 4006, 4606, 8012, 9212, 14021, 28042, 56084, 94141, 98147, 188282, 196294, 376564, 392588, 658987, 1317974, 2635948, 4612909, 9225818, 18451636]

約数ペア:

[(1, 18451636), (2, 9225818), (4, 4612909), (7, 2635948), (14, 1317974), (28, 658987), (47, 392588), (49, 376564), (94, 196294), (98, 188282), (188, 98147), (196, 94141), (329, 56084), (658, 28042), (1316, 14021), (2003, 9212), (2303, 8012), (4006, 4606)]