7902909

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 14197248

約数和(自身を除く): 6294339

約数列:

[1, 3, 7, 9, 17, 21, 47, 51, 63, 119, 141, 153, 157, 329, 357, 423, 471, 799, 987, 1071, 1099, 1413, 2397, 2669, 2961, 3297, 5593, 7191, 7379, 8007, 9891, 16779, 18683, 22137, 24021, 50337, 51653, 56049, 66411, 125443, 154959, 168147, 376329, 464877, 878101, 1128987, 2634303, 7902909]

約数ペア:

[(1, 7902909), (3, 2634303), (7, 1128987), (9, 878101), (17, 464877), (21, 376329), (47, 168147), (51, 154959), (63, 125443), (119, 66411), (141, 56049), (153, 51653), (157, 50337), (329, 24021), (357, 22137), (423, 18683), (471, 16779), (799, 9891), (987, 8007), (1071, 7379), (1099, 7191), (1413, 5593), (2397, 3297), (2669, 2961)]