21900256

素因数分解:

$2^5\times 7^2\times {\mathrm{13967}}^1$

素因数の和:13991

約数の個数: 36

約数和(自身を含む): 50159088

約数和(自身を除く): 28258832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 13967, 27934, 55868, 97769, 111736, 195538, 223472, 391076, 446944, 684383, 782152, 1368766, 1564304, 2737532, 3128608, 5475064, 10950128, 21900256]

約数ペア:

[(1, 21900256), (2, 10950128), (4, 5475064), (7, 3128608), (8, 2737532), (14, 1564304), (16, 1368766), (28, 782152), (32, 684383), (49, 446944), (56, 391076), (98, 223472), (112, 195538), (196, 111736), (224, 97769), (392, 55868), (784, 27934), (1568, 13967)]