21696896

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:116

約数の個数: 96

約数和(自身を含む): 50398200

約数和(自身を除く): 28701304

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 59, 64, 68, 104, 118, 128, 136, 169, 208, 221, 236, 272, 338, 416, 442, 472, 544, 676, 767, 832, 884, 944, 1003, 1088, 1352, 1534, 1664, 1768, 1888, 2006, 2176, 2704, 2873, 3068, 3536, 3776, 4012, 5408, 5746, 6136, 7072, 7552, 8024, 9971, 10816, 11492, 12272, 13039, 14144, 16048, 19942, 21632, 22984, 24544, 26078, 28288, 32096, 39884, 45968, 49088, 52156, 64192, 79768, 91936, 98176, 104312, 128384, 159536, 169507, 183872, 208624, 319072, 339014, 367744, 417248, 638144, 678028, 834496, 1276288, 1356056, 1668992, 2712112, 5424224, 10848448, 21696896]

約数ペア:

[(1, 21696896), (2, 10848448), (4, 5424224), (8, 2712112), (13, 1668992), (16, 1356056), (17, 1276288), (26, 834496), (32, 678028), (34, 638144), (52, 417248), (59, 367744), (64, 339014), (68, 319072), (104, 208624), (118, 183872), (128, 169507), (136, 159536), (169, 128384), (208, 104312), (221, 98176), (236, 91936), (272, 79768), (338, 64192), (416, 52156), (442, 49088), (472, 45968), (544, 39884), (676, 32096), (767, 28288), (832, 26078), (884, 24544), (944, 22984), (1003, 21632), (1088, 19942), (1352, 16048), (1534, 14144), (1664, 13039), (1768, 12272), (1888, 11492), (2006, 10816), (2176, 9971), (2704, 8024), (2873, 7552), (3068, 7072), (3536, 6136), (3776, 5746), (4012, 5408)]