21265664

素因数分解:

$2^8\times 7^1\times {\mathrm{11867}}^1$

素因数の和:11890

約数の個数: 36

約数和(自身を含む): 48516384

約数和(自身を除く): 27250720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11867, 23734, 47468, 83069, 94936, 166138, 189872, 332276, 379744, 664552, 759488, 1329104, 1518976, 2658208, 3037952, 5316416, 10632832, 21265664]

約数ペア:

[(1, 21265664), (2, 10632832), (4, 5316416), (7, 3037952), (8, 2658208), (14, 1518976), (16, 1329104), (28, 759488), (32, 664552), (56, 379744), (64, 332276), (112, 189872), (128, 166138), (224, 94936), (256, 83069), (448, 47468), (896, 23734), (1792, 11867)]