28698369

素因数分解:

$3^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{991}}^1$

素因数の和:1205

約数の個数: 24

約数和(自身を含む): 44782848

約数和(自身を除く): 16084479

約数列:

[1, 3, 7, 21, 49, 147, 197, 591, 991, 1379, 2973, 4137, 6937, 9653, 20811, 28959, 48559, 145677, 195227, 585681, 1366589, 4099767, 9566123, 28698369]

約数ペア:

[(1, 28698369), (3, 9566123), (7, 4099767), (21, 1366589), (49, 585681), (147, 195227), (197, 145677), (591, 48559), (991, 28959), (1379, 20811), (2973, 9653), (4137, 6937)]