21433984

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1171}}^1$

素因数の和:1209

約数の個数: 64

約数和(自身を含む): 50208480

約数和(自身を除く): 28774496

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 104, 128, 143, 176, 208, 286, 352, 416, 572, 704, 832, 1144, 1171, 1408, 1664, 2288, 2342, 4576, 4684, 9152, 9368, 12881, 15223, 18304, 18736, 25762, 30446, 37472, 51524, 60892, 74944, 103048, 121784, 149888, 167453, 206096, 243568, 334906, 412192, 487136, 669812, 824384, 974272, 1339624, 1648768, 1948544, 2679248, 5358496, 10716992, 21433984]

約数ペア:

[(1, 21433984), (2, 10716992), (4, 5358496), (8, 2679248), (11, 1948544), (13, 1648768), (16, 1339624), (22, 974272), (26, 824384), (32, 669812), (44, 487136), (52, 412192), (64, 334906), (88, 243568), (104, 206096), (128, 167453), (143, 149888), (176, 121784), (208, 103048), (286, 74944), (352, 60892), (416, 51524), (572, 37472), (704, 30446), (832, 25762), (1144, 18736), (1171, 18304), (1408, 15223), (1664, 12881), (2288, 9368), (2342, 9152), (4576, 4684)]