21758002

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 39588480

約数和(自身を除く): 17830478

約数列:

[1, 2, 7, 14, 19, 38, 133, 157, 266, 314, 521, 1042, 1099, 2198, 2983, 3647, 5966, 7294, 9899, 19798, 20881, 41762, 69293, 81797, 138586, 163594, 572579, 1145158, 1554143, 3108286, 10879001, 21758002]

約数ペア:

[(1, 21758002), (2, 10879001), (7, 3108286), (14, 1554143), (19, 1145158), (38, 572579), (133, 163594), (157, 138586), (266, 81797), (314, 69293), (521, 41762), (1042, 20881), (1099, 19798), (2198, 9899), (2983, 7294), (3647, 5966)]