28970991

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{24203}}^1$

素因数の和:24235

約数の個数: 24

約数和(自身を含む): 50344320

約数和(自身を除く): 21373329

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 24203, 72609, 169421, 217827, 459857, 508263, 1379571, 1524789, 3218999, 4138713, 9656997, 28970991]

約数ペア:

[(1, 28970991), (3, 9656997), (7, 4138713), (9, 3218999), (19, 1524789), (21, 1379571), (57, 508263), (63, 459857), (133, 217827), (171, 169421), (399, 72609), (1197, 24203)]