1640372961

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{219683}}^1$

素因数の和:219836

約数の個数: 16

約数和(自身を含む): 2319863040

約数和(自身を除く): 679490079

約数列:

[1, 3, 19, 57, 131, 393, 2489, 7467, 219683, 659049, 4173977, 12521931, 28778473, 86335419, 546790987, 1640372961]

約数ペア:

[(1, 1640372961), (3, 546790987), (19, 86335419), (57, 28778473), (131, 12521931), (393, 4173977), (2489, 659049), (7467, 219683)]