18935637

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 14241963

約数列:

[1, 3, 7, 17, 21, 29, 31, 51, 59, 87, 93, 119, 177, 203, 217, 357, 413, 493, 527, 609, 651, 899, 1003, 1239, 1479, 1581, 1711, 1829, 2697, 3009, 3451, 3689, 5133, 5487, 6293, 7021, 10353, 11067, 11977, 12803, 15283, 18879, 21063, 29087, 31093, 35931, 38409, 45849, 53041, 87261, 93279, 106981, 159123, 203609, 217651, 320943, 371287, 610827, 652953, 901697, 1113861, 2705091, 6311879, 18935637]

約数ペア:

[(1, 18935637), (3, 6311879), (7, 2705091), (17, 1113861), (21, 901697), (29, 652953), (31, 610827), (51, 371287), (59, 320943), (87, 217651), (93, 203609), (119, 159123), (177, 106981), (203, 93279), (217, 87261), (357, 53041), (413, 45849), (493, 38409), (527, 35931), (609, 31093), (651, 29087), (899, 21063), (1003, 18879), (1239, 15283), (1479, 12803), (1581, 11977), (1711, 11067), (1829, 10353), (2697, 7021), (3009, 6293), (3451, 5487), (3689, 5133)]