19507473

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:355

約数の個数: 40

約数和(自身を含む): 31339968

約数和(自身を除く): 11832495

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 111, 207, 283, 333, 621, 849, 851, 999, 1863, 2547, 2553, 2997, 6509, 7641, 7659, 10471, 19527, 22923, 22977, 31413, 58581, 68931, 94239, 175743, 240833, 282717, 527229, 722499, 848151, 2167497, 6502491, 19507473]

約数ペア:

[(1, 19507473), (3, 6502491), (9, 2167497), (23, 848151), (27, 722499), (37, 527229), (69, 282717), (81, 240833), (111, 175743), (207, 94239), (283, 68931), (333, 58581), (621, 31413), (849, 22977), (851, 22923), (999, 19527), (1863, 10471), (2547, 7659), (2553, 7641), (2997, 6509)]