1640185821

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{509}}^1\times {\mathrm{5189}}^1$

素因数の和:5730

約数の個数: 32

約数和(自身を含む): 2541024000

約数和(自身を除く): 900838179

約数列:

[1, 3, 9, 23, 27, 69, 207, 509, 621, 1527, 4581, 5189, 11707, 13743, 15567, 35121, 46701, 105363, 119347, 140103, 316089, 358041, 1074123, 2641201, 3222369, 7923603, 23770809, 60747623, 71312427, 182242869, 546728607, 1640185821]

約数ペア:

[(1, 1640185821), (3, 546728607), (9, 182242869), (23, 71312427), (27, 60747623), (69, 23770809), (207, 7923603), (509, 3222369), (621, 2641201), (1527, 1074123), (4581, 358041), (5189, 316089), (11707, 140103), (13743, 119347), (15567, 105363), (35121, 46701)]