20198829

素因数分解:

$3^1\times 7^2\times {\mathrm{313}}^1\times {\mathrm{439}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 31500480

約数和(自身を除く): 11301651

約数列:

[1, 3, 7, 21, 49, 147, 313, 439, 939, 1317, 2191, 3073, 6573, 9219, 15337, 21511, 46011, 64533, 137407, 412221, 961849, 2885547, 6732943, 20198829]

約数ペア:

[(1, 20198829), (3, 6732943), (7, 2885547), (21, 961849), (49, 412221), (147, 137407), (313, 64533), (439, 46011), (939, 21511), (1317, 15337), (2191, 9219), (3073, 6573)]