19401855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1993}}^1$

素因数の和:2071

約数の個数: 32

約数和(自身を含む): 34456320

約数和(自身を除く): 15054465

約数列:

[1, 3, 5, 11, 15, 33, 55, 59, 165, 177, 295, 649, 885, 1947, 1993, 3245, 5979, 9735, 9965, 21923, 29895, 65769, 109615, 117587, 328845, 352761, 587935, 1293457, 1763805, 3880371, 6467285, 19401855]

約数ペア:

[(1, 19401855), (3, 6467285), (5, 3880371), (11, 1763805), (15, 1293457), (33, 587935), (55, 352761), (59, 328845), (165, 117587), (177, 109615), (295, 65769), (649, 29895), (885, 21923), (1947, 9965), (1993, 9735), (3245, 5979)]