21007362005

素因数分解:

$5^1\times 7^1\times {\mathrm{9547}}^1\times {\mathrm{62869}}^1$

素因数の和:72428

約数の個数: 16

約数和(自身を含む): 28813572480

約数和(自身を除く): 7806210475

約数列:

[1, 5, 7, 35, 9547, 47735, 62869, 66829, 314345, 334145, 440083, 2200415, 600210343, 3001051715, 4201472401, 21007362005]

約数ペア:

[(1, 21007362005), (5, 4201472401), (7, 3001051715), (35, 600210343), (9547, 2200415), (47735, 440083), (62869, 334145), (66829, 314345)]