987720993

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{227219}}^1$

素因数の和:227258

約数の個数: 32

約数和(自身を含む): 1745049600

約数和(自身を除く): 757328607

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 227219, 681657, 1590533, 2044971, 4771599, 5226037, 6134913, 14314797, 15678111, 36582259, 42944391, 47034333, 109746777, 141102999, 329240331, 987720993]

約数ペア:

[(1, 987720993), (3, 329240331), (7, 141102999), (9, 109746777), (21, 47034333), (23, 42944391), (27, 36582259), (63, 15678111), (69, 14314797), (161, 6134913), (189, 5226037), (207, 4771599), (483, 2044971), (621, 1590533), (1449, 681657), (4347, 227219)]