20729436

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:531

約数の個数: 96

約数和(自身を含む): 61114368

約数和(自身を除く): 40384932

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 41, 42, 52, 78, 82, 84, 91, 123, 156, 164, 182, 246, 273, 287, 364, 463, 492, 533, 546, 574, 861, 926, 1066, 1092, 1148, 1389, 1599, 1722, 1852, 2132, 2778, 3198, 3241, 3444, 3731, 5556, 6019, 6396, 6482, 7462, 9723, 11193, 12038, 12964, 14924, 18057, 18983, 19446, 22386, 24076, 36114, 37966, 38892, 42133, 44772, 56949, 72228, 75932, 84266, 113898, 126399, 132881, 168532, 227796, 246779, 252798, 265762, 398643, 493558, 505596, 531524, 740337, 797286, 987116, 1480674, 1594572, 1727453, 2961348, 3454906, 5182359, 6909812, 10364718, 20729436]

約数ペア:

[(1, 20729436), (2, 10364718), (3, 6909812), (4, 5182359), (6, 3454906), (7, 2961348), (12, 1727453), (13, 1594572), (14, 1480674), (21, 987116), (26, 797286), (28, 740337), (39, 531524), (41, 505596), (42, 493558), (52, 398643), (78, 265762), (82, 252798), (84, 246779), (91, 227796), (123, 168532), (156, 132881), (164, 126399), (182, 113898), (246, 84266), (273, 75932), (287, 72228), (364, 56949), (463, 44772), (492, 42133), (533, 38892), (546, 37966), (574, 36114), (861, 24076), (926, 22386), (1066, 19446), (1092, 18983), (1148, 18057), (1389, 14924), (1599, 12964), (1722, 12038), (1852, 11193), (2132, 9723), (2778, 7462), (3198, 6482), (3241, 6396), (3444, 6019), (3731, 5556)]