18269391

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 29145600

約数和(自身を除く): 10876209

約数列:

[1, 3, 7, 21, 29, 87, 131, 203, 229, 393, 609, 687, 917, 1603, 2751, 3799, 4809, 6641, 11397, 19923, 26593, 29999, 46487, 79779, 89997, 139461, 209993, 629979, 869971, 2609913, 6089797, 18269391]

約数ペア:

[(1, 18269391), (3, 6089797), (7, 2609913), (21, 869971), (29, 629979), (87, 209993), (131, 139461), (203, 89997), (229, 79779), (393, 46487), (609, 29999), (687, 26593), (917, 19923), (1603, 11397), (2751, 6641), (3799, 4809)]