201886761

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1\times {\mathrm{421}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 291686400

約数和(自身を除く): 89799639

約数列:

[1, 3, 19, 47, 57, 141, 179, 421, 537, 893, 1263, 2679, 3401, 7999, 8413, 10203, 19787, 23997, 25239, 59361, 75359, 159847, 226077, 375953, 479541, 1127859, 1431821, 3541873, 4295463, 10625619, 67295587, 201886761]

約数ペア:

[(1, 201886761), (3, 67295587), (19, 10625619), (47, 4295463), (57, 3541873), (141, 1431821), (179, 1127859), (421, 479541), (537, 375953), (893, 226077), (1263, 159847), (2679, 75359), (3401, 59361), (7999, 25239), (8413, 23997), (10203, 19787)]