21006448

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21523}}^1$

素因数の和:21592

約数の個数: 20

約数和(自身を含む): 41369128

約数和(自身を除く): 20362680

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21523, 43046, 86092, 172184, 344368, 1312903, 2625806, 5251612, 10503224, 21006448]

約数ペア:

[(1, 21006448), (2, 10503224), (4, 5251612), (8, 2625806), (16, 1312903), (61, 344368), (122, 172184), (244, 86092), (488, 43046), (976, 21523)]