18882591

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 32443488

約数和(自身を除く): 13560897

約数列:

[1, 3, 7, 13, 21, 39, 41, 49, 91, 123, 147, 241, 273, 287, 533, 637, 723, 861, 1599, 1687, 1911, 2009, 3133, 3731, 5061, 6027, 9399, 9881, 11193, 11809, 21931, 26117, 29643, 35427, 65793, 69167, 78351, 128453, 153517, 207501, 385359, 460551, 484169, 899171, 1452507, 2697513, 6294197, 18882591]

約数ペア:

[(1, 18882591), (3, 6294197), (7, 2697513), (13, 1452507), (21, 899171), (39, 484169), (41, 460551), (49, 385359), (91, 207501), (123, 153517), (147, 128453), (241, 78351), (273, 69167), (287, 65793), (533, 35427), (637, 29643), (723, 26117), (861, 21931), (1599, 11809), (1687, 11193), (1911, 9881), (2009, 9399), (3133, 6027), (3731, 5061)]