87437217

素因数分解:

$3^1\times 7^4\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:291

約数の個数: 40

約数和(自身を含む): 138929600

約数和(自身を除く): 51492383

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 199, 343, 427, 597, 1029, 1281, 1393, 2401, 2989, 4179, 7203, 8967, 9751, 12139, 20923, 29253, 36417, 62769, 68257, 84973, 146461, 204771, 254919, 439383, 477799, 594811, 1433397, 1784433, 4163677, 12491031, 29145739, 87437217]

約数ペア:

[(1, 87437217), (3, 29145739), (7, 12491031), (21, 4163677), (49, 1784433), (61, 1433397), (147, 594811), (183, 477799), (199, 439383), (343, 254919), (427, 204771), (597, 146461), (1029, 84973), (1281, 68257), (1393, 62769), (2401, 36417), (2989, 29253), (4179, 20923), (7203, 12139), (8967, 9751)]