18957822

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^2$

素因数の和:110

約数の個数: 72

約数和(自身を含む): 44922696

約数和(自身を除く): 25964874

約数列:

[1, 2, 3, 6, 13, 17, 26, 29, 34, 39, 51, 58, 78, 87, 102, 174, 221, 289, 377, 442, 493, 578, 663, 754, 841, 867, 986, 1131, 1326, 1479, 1682, 1734, 2262, 2523, 2958, 3757, 5046, 6409, 7514, 8381, 10933, 11271, 12818, 14297, 16762, 19227, 21866, 22542, 25143, 28594, 32799, 38454, 42891, 50286, 65598, 85782, 108953, 185861, 217906, 243049, 326859, 371722, 486098, 557583, 653718, 729147, 1115166, 1458294, 3159637, 6319274, 9478911, 18957822]

約数ペア:

[(1, 18957822), (2, 9478911), (3, 6319274), (6, 3159637), (13, 1458294), (17, 1115166), (26, 729147), (29, 653718), (34, 557583), (39, 486098), (51, 371722), (58, 326859), (78, 243049), (87, 217906), (102, 185861), (174, 108953), (221, 85782), (289, 65598), (377, 50286), (442, 42891), (493, 38454), (578, 32799), (663, 28594), (754, 25143), (841, 22542), (867, 21866), (986, 19227), (1131, 16762), (1326, 14297), (1479, 12818), (1682, 11271), (1734, 10933), (2262, 8381), (2523, 7514), (2958, 6409), (3757, 5046)]