65639973

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 103223296

約数和(自身を除く): 37583323

約数列:

[1, 3, 7, 21, 43, 129, 157, 301, 463, 471, 903, 1099, 1389, 3241, 3297, 6751, 9723, 19909, 20253, 47257, 59727, 72691, 139363, 141771, 218073, 418089, 508837, 1526511, 3125713, 9377139, 21879991, 65639973]

約数ペア:

[(1, 65639973), (3, 21879991), (7, 9377139), (21, 3125713), (43, 1526511), (129, 508837), (157, 418089), (301, 218073), (463, 141771), (471, 139363), (903, 72691), (1099, 59727), (1389, 47257), (3241, 20253), (3297, 19909), (6751, 9723)]