207747729

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{881}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 363242880

約数和(自身を除く): 155495151

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 197, 399, 591, 881, 1197, 1379, 1773, 2643, 3743, 4137, 6167, 7929, 11229, 12411, 16739, 18501, 26201, 33687, 50217, 55503, 78603, 117173, 150651, 173557, 235809, 351519, 520671, 1054557, 1214899, 1562013, 3297583, 3644697, 9892749, 10934091, 23083081, 29678247, 69249243, 207747729]

約数ペア:

[(1, 207747729), (3, 69249243), (7, 29678247), (9, 23083081), (19, 10934091), (21, 9892749), (57, 3644697), (63, 3297583), (133, 1562013), (171, 1214899), (197, 1054557), (399, 520671), (591, 351519), (881, 235809), (1197, 173557), (1379, 150651), (1773, 117173), (2643, 78603), (3743, 55503), (4137, 50217), (6167, 33687), (7929, 26201), (11229, 18501), (12411, 16739)]