18757648

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{991}}^1$

素因数の和:1032

約数の個数: 60

約数和(自身を含む): 45020928

約数和(自身を除く): 26263280

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 169, 182, 208, 338, 364, 676, 728, 991, 1183, 1352, 1456, 1982, 2366, 2704, 3964, 4732, 6937, 7928, 9464, 12883, 13874, 15856, 18928, 25766, 27748, 51532, 55496, 90181, 103064, 110992, 167479, 180362, 206128, 334958, 360724, 669916, 721448, 1172353, 1339832, 1442896, 2344706, 2679664, 4689412, 9378824, 18757648]

約数ペア:

[(1, 18757648), (2, 9378824), (4, 4689412), (7, 2679664), (8, 2344706), (13, 1442896), (14, 1339832), (16, 1172353), (26, 721448), (28, 669916), (52, 360724), (56, 334958), (91, 206128), (104, 180362), (112, 167479), (169, 110992), (182, 103064), (208, 90181), (338, 55496), (364, 51532), (676, 27748), (728, 25766), (991, 18928), (1183, 15856), (1352, 13874), (1456, 12883), (1982, 9464), (2366, 7928), (2704, 6937), (3964, 4732)]