21205912

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29129}}^1$

素因数の和:29155

約数の個数: 32

約数和(自身を含む): 48938400

約数和(自身を除く): 27732488

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 29129, 58258, 116516, 203903, 233032, 378677, 407806, 757354, 815612, 1514708, 1631224, 2650739, 3029416, 5301478, 10602956, 21205912]

約数ペア:

[(1, 21205912), (2, 10602956), (4, 5301478), (7, 3029416), (8, 2650739), (13, 1631224), (14, 1514708), (26, 815612), (28, 757354), (52, 407806), (56, 378677), (91, 233032), (104, 203903), (182, 116516), (364, 58258), (728, 29129)]