19993532

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 40031040

約数和(自身を除く): 20037508

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 73, 92, 146, 229, 292, 299, 458, 598, 916, 949, 1196, 1679, 1898, 2977, 3358, 3796, 5267, 5954, 6716, 10534, 11908, 16717, 21068, 21827, 33434, 43654, 66868, 68471, 87308, 136942, 217321, 273884, 384491, 434642, 768982, 869284, 1537964, 4998383, 9996766, 19993532]

約数ペア:

[(1, 19993532), (2, 9996766), (4, 4998383), (13, 1537964), (23, 869284), (26, 768982), (46, 434642), (52, 384491), (73, 273884), (92, 217321), (146, 136942), (229, 87308), (292, 68471), (299, 66868), (458, 43654), (598, 33434), (916, 21827), (949, 21068), (1196, 16717), (1679, 11908), (1898, 10534), (2977, 6716), (3358, 5954), (3796, 5267)]