678661641

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20441}}^1$

素因数の和:20502

約数の個数: 48

約数和(自身を含む): 1224557568

約数和(自身を除く): 545895927

約数列:

[1, 3, 7, 9, 17, 21, 31, 51, 63, 93, 119, 153, 217, 279, 357, 527, 651, 1071, 1581, 1953, 3689, 4743, 11067, 20441, 33201, 61323, 143087, 183969, 347497, 429261, 633671, 1042491, 1287783, 1901013, 2432479, 3127473, 4435697, 5703039, 7297437, 10772407, 13307091, 21892311, 32317221, 39921273, 75406849, 96951663, 226220547, 678661641]

約数ペア:

[(1, 678661641), (3, 226220547), (7, 96951663), (9, 75406849), (17, 39921273), (21, 32317221), (31, 21892311), (51, 13307091), (63, 10772407), (93, 7297437), (119, 5703039), (153, 4435697), (217, 3127473), (279, 2432479), (357, 1901013), (527, 1287783), (651, 1042491), (1071, 633671), (1581, 429261), (1953, 347497), (3689, 183969), (4743, 143087), (11067, 61323), (20441, 33201)]