208725713

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 258412032

約数和(自身を除く): 49686319

約数列:

[1, 7, 23, 53, 61, 161, 371, 401, 427, 1219, 1403, 2807, 3233, 8533, 9223, 9821, 21253, 22631, 24461, 64561, 74359, 148771, 171227, 488819, 520513, 562603, 1296433, 3421733, 3938221, 9075031, 29817959, 208725713]

約数ペア:

[(1, 208725713), (7, 29817959), (23, 9075031), (53, 3938221), (61, 3421733), (161, 1296433), (371, 562603), (401, 520513), (427, 488819), (1219, 171227), (1403, 148771), (2807, 74359), (3233, 64561), (8533, 24461), (9223, 22631), (9821, 21253)]