215538147

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{947}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 360846720

約数和(自身を除く): 145308573

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 171, 209, 363, 627, 947, 1089, 1331, 1881, 2299, 2841, 3993, 6897, 8523, 10417, 11979, 17993, 20691, 25289, 31251, 53979, 75867, 93753, 114587, 161937, 197923, 227601, 343761, 593769, 1031283, 1260457, 1781307, 2177153, 3781371, 6531459, 11344113, 19594377, 23948683, 71846049, 215538147]

約数ペア:

[(1, 215538147), (3, 71846049), (9, 23948683), (11, 19594377), (19, 11344113), (33, 6531459), (57, 3781371), (99, 2177153), (121, 1781307), (171, 1260457), (209, 1031283), (363, 593769), (627, 343761), (947, 227601), (1089, 197923), (1331, 161937), (1881, 114587), (2299, 93753), (2841, 75867), (3993, 53979), (6897, 31251), (8523, 25289), (10417, 20691), (11979, 17993)]