19981572

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5569}}^1$

素因数の和:5612

約数の個数: 48

約数和(自身を含む): 52402560

約数和(自身を除く): 32420988

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 276, 299, 598, 897, 1196, 1794, 3588, 5569, 11138, 16707, 22276, 33414, 66828, 72397, 128087, 144794, 217191, 256174, 289588, 384261, 434382, 512348, 768522, 868764, 1537044, 1665131, 3330262, 4995393, 6660524, 9990786, 19981572]

約数ペア:

[(1, 19981572), (2, 9990786), (3, 6660524), (4, 4995393), (6, 3330262), (12, 1665131), (13, 1537044), (23, 868764), (26, 768522), (39, 512348), (46, 434382), (52, 384261), (69, 289588), (78, 256174), (92, 217191), (138, 144794), (156, 128087), (276, 72397), (299, 66828), (598, 33414), (897, 22276), (1196, 16707), (1794, 11138), (3588, 5569)]