639599793

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{3137}}^1$

素因数の和:3246

約数の個数: 48

約数和(自身を含む): 1058886720

約数和(自身を除く): 419286927

約数列:

[1, 3, 7, 19, 21, 49, 57, 73, 133, 147, 219, 399, 511, 931, 1387, 1533, 2793, 3137, 3577, 4161, 9411, 9709, 10731, 21959, 29127, 59603, 65877, 67963, 153713, 178809, 203889, 229001, 417221, 461139, 687003, 1251663, 1603007, 2920547, 4351019, 4809021, 8761641, 11221049, 13053057, 30457133, 33663147, 91371399, 213199931, 639599793]

約数ペア:

[(1, 639599793), (3, 213199931), (7, 91371399), (19, 33663147), (21, 30457133), (49, 13053057), (57, 11221049), (73, 8761641), (133, 4809021), (147, 4351019), (219, 2920547), (399, 1603007), (511, 1251663), (931, 687003), (1387, 461139), (1533, 417221), (2793, 229001), (3137, 203889), (3577, 178809), (4161, 153713), (9411, 67963), (9709, 65877), (10731, 59603), (21959, 29127)]