21082852

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 23043356

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 107, 124, 214, 217, 227, 428, 434, 454, 749, 868, 908, 1498, 1589, 2996, 3178, 3317, 6356, 6634, 7037, 13268, 14074, 23219, 24289, 28148, 46438, 48578, 49259, 92876, 97156, 98518, 170023, 197036, 340046, 680092, 752959, 1505918, 3011836, 5270713, 10541426, 21082852]

約数ペア:

[(1, 21082852), (2, 10541426), (4, 5270713), (7, 3011836), (14, 1505918), (28, 752959), (31, 680092), (62, 340046), (107, 197036), (124, 170023), (214, 98518), (217, 97156), (227, 92876), (428, 49259), (434, 48578), (454, 46438), (749, 28148), (868, 24289), (908, 23219), (1498, 14074), (1589, 13268), (2996, 7037), (3178, 6634), (3317, 6356)]