20661244

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{1019}}^1$

素因数の和:1197

約数の個数: 24

約数和(自身を含む): 37442160

約数和(自身を除く): 16780916

約数列:

[1, 2, 4, 37, 74, 137, 148, 274, 548, 1019, 2038, 4076, 5069, 10138, 20276, 37703, 75406, 139603, 150812, 279206, 558412, 5165311, 10330622, 20661244]

約数ペア:

[(1, 20661244), (2, 10330622), (4, 5165311), (37, 558412), (74, 279206), (137, 150812), (148, 139603), (274, 75406), (548, 37703), (1019, 20276), (2038, 10138), (4076, 5069)]