19986435

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{947}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 40225536

約数和(自身を除く): 20239101

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 67, 105, 201, 315, 335, 469, 603, 947, 1005, 1407, 2345, 2841, 3015, 4221, 4735, 6629, 7035, 8523, 14205, 19887, 21105, 33145, 42615, 59661, 63449, 99435, 190347, 298305, 317245, 444143, 571041, 951735, 1332429, 2220715, 2855205, 3997287, 6662145, 19986435]

約数ペア:

[(1, 19986435), (3, 6662145), (5, 3997287), (7, 2855205), (9, 2220715), (15, 1332429), (21, 951735), (35, 571041), (45, 444143), (63, 317245), (67, 298305), (105, 190347), (201, 99435), (315, 63449), (335, 59661), (469, 42615), (603, 33145), (947, 21105), (1005, 19887), (1407, 14205), (2345, 8523), (2841, 7035), (3015, 6629), (4221, 4735)]