21056672

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1033}}^1$

素因数の和:1070

約数の個数: 72

約数和(自身を含む): 51983316

約数和(自身を除く): 30926644

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 1033, 1274, 1456, 1568, 2066, 2548, 2912, 4132, 5096, 7231, 8264, 10192, 13429, 14462, 16528, 20384, 26858, 28924, 33056, 50617, 53716, 57848, 94003, 101234, 107432, 115696, 188006, 202468, 214864, 231392, 376012, 404936, 429728, 658021, 752024, 809872, 1316042, 1504048, 1619744, 2632084, 3008096, 5264168, 10528336, 21056672]

約数ペア:

[(1, 21056672), (2, 10528336), (4, 5264168), (7, 3008096), (8, 2632084), (13, 1619744), (14, 1504048), (16, 1316042), (26, 809872), (28, 752024), (32, 658021), (49, 429728), (52, 404936), (56, 376012), (91, 231392), (98, 214864), (104, 202468), (112, 188006), (182, 115696), (196, 107432), (208, 101234), (224, 94003), (364, 57848), (392, 53716), (416, 50617), (637, 33056), (728, 28924), (784, 26858), (1033, 20384), (1274, 16528), (1456, 14462), (1568, 13429), (2066, 10192), (2548, 8264), (2912, 7231), (4132, 5096)]