18335979

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 11541141

約数列:

[1, 3, 9, 17, 37, 41, 51, 79, 111, 123, 153, 237, 333, 369, 629, 697, 711, 1343, 1517, 1887, 2091, 2923, 3239, 4029, 4551, 5661, 6273, 8769, 9717, 12087, 13653, 25789, 26307, 29151, 49691, 55063, 77367, 119843, 149073, 165189, 232101, 359529, 447219, 495567, 1078587, 2037331, 6111993, 18335979]

約数ペア:

[(1, 18335979), (3, 6111993), (9, 2037331), (17, 1078587), (37, 495567), (41, 447219), (51, 359529), (79, 232101), (111, 165189), (123, 149073), (153, 119843), (237, 77367), (333, 55063), (369, 49691), (629, 29151), (697, 26307), (711, 25789), (1343, 13653), (1517, 12087), (1887, 9717), (2091, 8769), (2923, 6273), (3239, 5661), (4029, 4551)]