28488789

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19661}}^1$

素因数の和:19697

約数の個数: 24

約数和(自身を含む): 49076352

約数和(自身を除く): 20587563

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 19661, 58983, 137627, 176949, 412881, 452203, 1238643, 1356609, 3165421, 4069827, 9496263, 28488789]

約数ペア:

[(1, 28488789), (3, 9496263), (7, 4069827), (9, 3165421), (21, 1356609), (23, 1238643), (63, 452203), (69, 412881), (161, 176949), (207, 137627), (483, 58983), (1449, 19661)]