21507472

素因数分解:

$2^4\times 7^3\times {\mathrm{3919}}^1$

素因数の和:3948

約数の個数: 40

約数和(自身を含む): 48608000

約数和(自身を除く): 27100528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3919, 5488, 7838, 15676, 27433, 31352, 54866, 62704, 109732, 192031, 219464, 384062, 438928, 768124, 1344217, 1536248, 2688434, 3072496, 5376868, 10753736, 21507472]

約数ペア:

[(1, 21507472), (2, 10753736), (4, 5376868), (7, 3072496), (8, 2688434), (14, 1536248), (16, 1344217), (28, 768124), (49, 438928), (56, 384062), (98, 219464), (112, 192031), (196, 109732), (343, 62704), (392, 54866), (686, 31352), (784, 27433), (1372, 15676), (2744, 7838), (3919, 5488)]