207811647

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 329691648

約数和(自身を除く): 121880001

約数列:

[1, 3, 9, 23, 37, 43, 69, 111, 129, 207, 333, 387, 631, 851, 989, 1591, 1893, 2553, 2967, 4773, 5679, 7659, 8901, 14319, 14513, 23347, 27133, 36593, 43539, 70041, 81399, 109779, 130617, 210123, 244197, 329337, 536981, 624059, 1003921, 1610943, 1872177, 3011763, 4832829, 5616531, 9035289, 23090183, 69270549, 207811647]

約数ペア:

[(1, 207811647), (3, 69270549), (9, 23090183), (23, 9035289), (37, 5616531), (43, 4832829), (69, 3011763), (111, 1872177), (129, 1610943), (207, 1003921), (333, 624059), (387, 536981), (631, 329337), (851, 244197), (989, 210123), (1591, 130617), (1893, 109779), (2553, 81399), (2967, 70041), (4773, 43539), (5679, 36593), (7659, 27133), (8901, 23347), (14319, 14513)]