20210813

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6607}}^1$

素因数の和:6656

約数の個数: 16

約数和(自身を含む): 25374720

約数和(自身を除く): 5163907

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 6607, 46249, 125533, 151961, 878731, 1063727, 2887259, 20210813]

約数ペア:

[(1, 20210813), (7, 2887259), (19, 1063727), (23, 878731), (133, 151961), (161, 125533), (437, 46249), (3059, 6607)]