31228533

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3727}}^1$

素因数の和:3766

約数の個数: 36

約数和(自身を含む): 55248960

約数和(自身を除く): 24020427

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 3727, 8379, 11181, 26089, 33543, 70813, 78267, 182623, 212439, 234801, 495691, 547869, 637317, 1487073, 1643607, 3469837, 4461219, 10409511, 31228533]

約数ペア:

[(1, 31228533), (3, 10409511), (7, 4461219), (9, 3469837), (19, 1643607), (21, 1487073), (49, 637317), (57, 547869), (63, 495691), (133, 234801), (147, 212439), (171, 182623), (399, 78267), (441, 70813), (931, 33543), (1197, 26089), (2793, 11181), (3727, 8379)]