216972287

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 266112000

約数和(自身を除く): 49139713

約数列:

[1, 7, 29, 41, 131, 199, 203, 287, 917, 1189, 1393, 3799, 5371, 5771, 8159, 8323, 26069, 26593, 37597, 40397, 57113, 155759, 182483, 236611, 756001, 1068829, 1090313, 1656277, 5292007, 7481803, 30996041, 216972287]

約数ペア:

[(1, 216972287), (7, 30996041), (29, 7481803), (41, 5292007), (131, 1656277), (199, 1090313), (203, 1068829), (287, 756001), (917, 236611), (1189, 182483), (1393, 155759), (3799, 57113), (5371, 40397), (5771, 37597), (8159, 26593), (8323, 26069)]