20161185

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 17854815

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 59, 95, 109, 165, 177, 209, 285, 295, 327, 545, 627, 649, 885, 1045, 1121, 1199, 1635, 1947, 2071, 3135, 3245, 3363, 3597, 5605, 5995, 6213, 6431, 9735, 10355, 12331, 16815, 17985, 19293, 22781, 31065, 32155, 36993, 61655, 68343, 70741, 96465, 113905, 122189, 184965, 212223, 341715, 353705, 366567, 610945, 1061115, 1344079, 1832835, 4032237, 6720395, 20161185]

約数ペア:

[(1, 20161185), (3, 6720395), (5, 4032237), (11, 1832835), (15, 1344079), (19, 1061115), (33, 610945), (55, 366567), (57, 353705), (59, 341715), (95, 212223), (109, 184965), (165, 122189), (177, 113905), (209, 96465), (285, 70741), (295, 68343), (327, 61655), (545, 36993), (627, 32155), (649, 31065), (885, 22781), (1045, 19293), (1121, 17985), (1199, 16815), (1635, 12331), (1947, 10355), (2071, 9735), (3135, 6431), (3245, 6213), (3363, 5995), (3597, 5605)]