21029280376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4702433}}^1$

素因数の和:4702495

約数の個数: 32

約数和(自身を含む): 43450490160

約数和(自身を除く): 22421209784

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4702433, 9404866, 18809732, 37619464, 61131629, 122263258, 202204619, 244526516, 404409238, 489053032, 808818476, 1617636952, 2628660047, 5257320094, 10514640188, 21029280376]

約数ペア:

[(1, 21029280376), (2, 10514640188), (4, 5257320094), (8, 2628660047), (13, 1617636952), (26, 808818476), (43, 489053032), (52, 404409238), (86, 244526516), (104, 202204619), (172, 122263258), (344, 61131629), (559, 37619464), (1118, 18809732), (2236, 9404866), (4472, 4702433)]