19516144

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 39809952

約数和(自身を除く): 20293808

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 181, 184, 293, 362, 368, 586, 724, 1172, 1448, 2344, 2896, 4163, 4688, 6739, 8326, 13478, 16652, 26956, 33304, 53033, 53912, 66608, 106066, 107824, 212132, 424264, 848528, 1219759, 2439518, 4879036, 9758072, 19516144]

約数ペア:

[(1, 19516144), (2, 9758072), (4, 4879036), (8, 2439518), (16, 1219759), (23, 848528), (46, 424264), (92, 212132), (181, 107824), (184, 106066), (293, 66608), (362, 53912), (368, 53033), (586, 33304), (724, 26956), (1172, 16652), (1448, 13478), (2344, 8326), (2896, 6739), (4163, 4688)]