19796588

素因数分解:

$2^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 41395200

約数和(自身を除く): 21598612

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 307, 329, 343, 614, 658, 686, 1228, 1316, 1372, 2149, 2303, 4298, 4606, 8596, 9212, 14429, 15043, 16121, 28858, 30086, 32242, 57716, 60172, 64484, 101003, 105301, 202006, 210602, 404012, 421204, 707021, 1414042, 2828084, 4949147, 9898294, 19796588]

約数ペア:

[(1, 19796588), (2, 9898294), (4, 4949147), (7, 2828084), (14, 1414042), (28, 707021), (47, 421204), (49, 404012), (94, 210602), (98, 202006), (188, 105301), (196, 101003), (307, 64484), (329, 60172), (343, 57716), (614, 32242), (658, 30086), (686, 28858), (1228, 16121), (1316, 15043), (1372, 14429), (2149, 9212), (2303, 8596), (4298, 4606)]