19938516

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5557}}^1$

素因数の和:5600

約数の個数: 48

約数和(自身を含む): 52289664

約数和(自身を除く): 32351148

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, 5557, 11114, 16671, 22228, 33342, 66684, 72241, 127811, 144482, 216723, 255622, 288964, 383433, 433446, 511244, 766866, 866892, 1533732, 1661543, 3323086, 4984629, 6646172, 9969258, 19938516]

約数ペア:

[(1, 19938516), (2, 9969258), (3, 6646172), (4, 4984629), (6, 3323086), (12, 1661543), (13, 1533732), (23, 866892), (26, 766866), (39, 511244), (46, 433446), (52, 383433), (69, 288964), (78, 255622), (92, 216723), (138, 144482), (156, 127811), (276, 72241), (299, 66684), (598, 33342), (897, 22228), (1196, 16671), (1794, 11114), (3588, 5557)]