207801993

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1583}}^1$

素因数の和:1666

約数の個数: 48

約数和(自身を含む): 346705920

約数和(自身を除く): 138903927

約数列:

[1, 3, 7, 19, 21, 47, 49, 57, 133, 141, 147, 329, 399, 893, 931, 987, 1583, 2303, 2679, 2793, 4749, 6251, 6909, 11081, 18753, 30077, 33243, 43757, 74401, 77567, 90231, 131271, 210539, 223203, 232701, 520807, 631617, 1413619, 1473773, 1562421, 3645649, 4240857, 4421319, 9895333, 10936947, 29685999, 69267331, 207801993]

約数ペア:

[(1, 207801993), (3, 69267331), (7, 29685999), (19, 10936947), (21, 9895333), (47, 4421319), (49, 4240857), (57, 3645649), (133, 1562421), (141, 1473773), (147, 1413619), (329, 631617), (399, 520807), (893, 232701), (931, 223203), (987, 210539), (1583, 131271), (2303, 90231), (2679, 77567), (2793, 74401), (4749, 43757), (6251, 33243), (6909, 30077), (11081, 18753)]