42900221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 55910400

約数和(自身を除く): 13010179

約数列:

[1, 7, 13, 23, 91, 103, 161, 199, 299, 721, 1339, 1393, 2093, 2369, 2587, 4577, 9373, 16583, 18109, 20497, 30797, 32039, 59501, 143479, 215579, 266461, 416507, 471431, 1865227, 3300017, 6128603, 42900221]

約数ペア:

[(1, 42900221), (7, 6128603), (13, 3300017), (23, 1865227), (91, 471431), (103, 416507), (161, 266461), (199, 215579), (299, 143479), (721, 59501), (1339, 32039), (1393, 30797), (2093, 20497), (2369, 18109), (2587, 16583), (4577, 9373)]