18972338

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{353}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 35683200

約数和(自身を除く): 16710862

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 349, 353, 698, 706, 2443, 2471, 3839, 3883, 4886, 4942, 7678, 7766, 26873, 27181, 53746, 54362, 123197, 246394, 862379, 1355167, 1724758, 2710334, 9486169, 18972338]

約数ペア:

[(1, 18972338), (2, 9486169), (7, 2710334), (11, 1724758), (14, 1355167), (22, 862379), (77, 246394), (154, 123197), (349, 54362), (353, 53746), (698, 27181), (706, 26873), (2443, 7766), (2471, 7678), (3839, 4942), (3883, 4886)]