19473009985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{306011}}^1$

素因数の和:306129

約数の個数: 32

約数和(自身を含む): 27761408640

約数和(自身を除く): 8288398655

約数列:

[1, 5, 11, 13, 55, 65, 89, 143, 445, 715, 979, 1157, 4895, 5785, 12727, 63635, 306011, 1530055, 3366121, 3978143, 16830605, 19890715, 27234979, 43759573, 136174895, 218797865, 299584769, 354054727, 1497923845, 1770273635, 3894601997, 19473009985]

約数ペア:

[(1, 19473009985), (5, 3894601997), (11, 1770273635), (13, 1497923845), (55, 354054727), (65, 299584769), (89, 218797865), (143, 136174895), (445, 43759573), (715, 27234979), (979, 19890715), (1157, 16830605), (4895, 3978143), (5785, 3366121), (12727, 1530055), (63635, 306011)]