221738181

素因数分解:

$3^1\times 7^3\times {\mathrm{229}}^1\times {\mathrm{941}}^1$

素因数の和:1194

約数の個数: 32

約数和(自身を含む): 346656000

約数和(自身を除く): 124917819

約数列:

[1, 3, 7, 21, 49, 147, 229, 343, 687, 941, 1029, 1603, 2823, 4809, 6587, 11221, 19761, 33663, 46109, 78547, 138327, 215489, 235641, 322763, 646467, 968289, 1508423, 4525269, 10558961, 31676883, 73912727, 221738181]

約数ペア:

[(1, 221738181), (3, 73912727), (7, 31676883), (21, 10558961), (49, 4525269), (147, 1508423), (229, 968289), (343, 646467), (687, 322763), (941, 235641), (1029, 215489), (1603, 138327), (2823, 78547), (4809, 46109), (6587, 33663), (11221, 19761)]