21485632130

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5358013}}^1$

素因数の和:5358421

約数の個数: 16

約数和(自身を含む): 38770589304

約数和(自身を除く): 17284957174

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 5358013, 10716026, 26790065, 53580130, 2148563213, 4297126426, 10742816065, 21485632130]

約数ペア:

[(1, 21485632130), (2, 10742816065), (5, 4297126426), (10, 2148563213), (401, 53580130), (802, 26790065), (2005, 10716026), (4010, 5358013)]