20856738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 50061312

約数和(自身を除く): 29204574

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 83, 93, 166, 186, 193, 217, 249, 386, 434, 498, 579, 581, 651, 1158, 1162, 1302, 1351, 1743, 2573, 2702, 3486, 4053, 5146, 5983, 7719, 8106, 11966, 15438, 16019, 17949, 18011, 32038, 35898, 36022, 41881, 48057, 54033, 83762, 96114, 108066, 112133, 125643, 224266, 251286, 336399, 496589, 672798, 993178, 1489767, 2979534, 3476123, 6952246, 10428369, 20856738]

約数ペア:

[(1, 20856738), (2, 10428369), (3, 6952246), (6, 3476123), (7, 2979534), (14, 1489767), (21, 993178), (31, 672798), (42, 496589), (62, 336399), (83, 251286), (93, 224266), (166, 125643), (186, 112133), (193, 108066), (217, 96114), (249, 83762), (386, 54033), (434, 48057), (498, 41881), (579, 36022), (581, 35898), (651, 32038), (1158, 18011), (1162, 17949), (1302, 16019), (1351, 15438), (1743, 11966), (2573, 8106), (2702, 7719), (3486, 5983), (4053, 5146)]