20712771

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{251}}^1$

素因数の和:483

約数の個数: 24

約数和(自身を含む): 30781296

約数和(自身を除く): 10068525

約数列:

[1, 3, 9, 53, 159, 173, 251, 477, 519, 753, 1557, 2259, 9169, 13303, 27507, 39909, 43423, 82521, 119727, 130269, 390807, 2301419, 6904257, 20712771]

約数ペア:

[(1, 20712771), (3, 6904257), (9, 2301419), (53, 390807), (159, 130269), (173, 119727), (251, 82521), (477, 43423), (519, 39909), (753, 27507), (1557, 13303), (2259, 9169)]