28943397

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6857}}^1$

素因数の和:6937

約数の個数: 24

約数和(自身を含む): 48499776

約数和(自身を除く): 19556379

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 6857, 20571, 47999, 61713, 143997, 431991, 459419, 1378257, 3215933, 4134771, 9647799, 28943397]

約数ペア:

[(1, 28943397), (3, 9647799), (7, 4134771), (9, 3215933), (21, 1378257), (63, 459419), (67, 431991), (201, 143997), (469, 61713), (603, 47999), (1407, 20571), (4221, 6857)]