21739144

素因数分解:

$2^3\times 7^2\times {\mathrm{55457}}^1$

素因数の和:55477

約数の個数: 24

約数和(自身を含む): 47416590

約数和(自身を除く): 25677446

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55457, 110914, 221828, 388199, 443656, 776398, 1552796, 2717393, 3105592, 5434786, 10869572, 21739144]

約数ペア:

[(1, 21739144), (2, 10869572), (4, 5434786), (7, 3105592), (8, 2717393), (14, 1552796), (28, 776398), (49, 443656), (56, 388199), (98, 221828), (196, 110914), (392, 55457)]