211294517

素因数分解:

$7^3\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 256608000

約数和(自身を除く): 45313483

約数列:

[1, 7, 49, 53, 59, 197, 343, 371, 413, 1379, 2597, 2891, 3127, 9653, 10441, 11623, 18179, 20237, 21889, 67571, 73087, 81361, 153223, 511609, 569527, 616019, 1072561, 3581263, 3986689, 4312133, 30184931, 211294517]

約数ペア:

[(1, 211294517), (7, 30184931), (49, 4312133), (53, 3986689), (59, 3581263), (197, 1072561), (343, 616019), (371, 569527), (413, 511609), (1379, 153223), (2597, 81361), (2891, 73087), (3127, 67571), (9653, 21889), (10441, 20237), (11623, 18179)]