20490696561

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{569}}^1\times {\mathrm{2131}}^1$

素因数の和:2877

約数の個数: 32

約数和(自身を含む): 28232455680

約数和(自身を除く): 7741759119

約数列:

[1, 3, 43, 129, 131, 393, 569, 1707, 2131, 5633, 6393, 16899, 24467, 73401, 74539, 91633, 223617, 274899, 279161, 837483, 1212539, 3205177, 3637617, 9615531, 12003923, 36011769, 52139177, 156417531, 158842609, 476527827, 6830232187, 20490696561]

約数ペア:

[(1, 20490696561), (3, 6830232187), (43, 476527827), (129, 158842609), (131, 156417531), (393, 52139177), (569, 36011769), (1707, 12003923), (2131, 9615531), (5633, 3637617), (6393, 3205177), (16899, 1212539), (24467, 837483), (73401, 279161), (74539, 274899), (91633, 223617)]