21000480770

素因数分解:

$2^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{739}}^1\times {\mathrm{10259}}^1$

素因数の和:11282

約数の個数: 32

約数和(自身を含む): 37992369600

約数和(自身を除く): 16991888830

約数列:

[1, 2, 5, 10, 277, 554, 739, 1385, 1478, 2770, 3695, 7390, 10259, 20518, 51295, 102590, 204703, 409406, 1023515, 2047030, 2841743, 5683486, 7581401, 14208715, 15162802, 28417430, 37907005, 75814010, 2100048077, 4200096154, 10500240385, 21000480770]

約数ペア:

[(1, 21000480770), (2, 10500240385), (5, 4200096154), (10, 2100048077), (277, 75814010), (554, 37907005), (739, 28417430), (1385, 15162802), (1478, 14208715), (2770, 7581401), (3695, 5683486), (7390, 2841743), (10259, 2047030), (20518, 1023515), (51295, 409406), (102590, 204703)]