18871293

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 11541507

約数列:

[1, 3, 7, 21, 23, 69, 89, 161, 267, 439, 483, 623, 1317, 1869, 2047, 3073, 6141, 9219, 10097, 14329, 30291, 39071, 42987, 70679, 117213, 212037, 273497, 820491, 898633, 2695899, 6290431, 18871293]

約数ペア:

[(1, 18871293), (3, 6290431), (7, 2695899), (21, 898633), (23, 820491), (69, 273497), (89, 212037), (161, 117213), (267, 70679), (439, 42987), (483, 39071), (623, 30291), (1317, 14329), (1869, 10097), (2047, 9219), (3073, 6141)]