20694848

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{827}}^1$

素因数の和:879

約数の個数: 56

約数和(自身を含む): 45427392

約数和(自身を除く): 24732544

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 64, 68, 92, 136, 184, 272, 368, 391, 544, 736, 782, 827, 1088, 1472, 1564, 1654, 3128, 3308, 6256, 6616, 12512, 13232, 14059, 19021, 25024, 26464, 28118, 38042, 52928, 56236, 76084, 112472, 152168, 224944, 304336, 323357, 449888, 608672, 646714, 899776, 1217344, 1293428, 2586856, 5173712, 10347424, 20694848]

約数ペア:

[(1, 20694848), (2, 10347424), (4, 5173712), (8, 2586856), (16, 1293428), (17, 1217344), (23, 899776), (32, 646714), (34, 608672), (46, 449888), (64, 323357), (68, 304336), (92, 224944), (136, 152168), (184, 112472), (272, 76084), (368, 56236), (391, 52928), (544, 38042), (736, 28118), (782, 26464), (827, 25024), (1088, 19021), (1472, 14059), (1564, 13232), (1654, 12512), (3128, 6616), (3308, 6256)]