19513338

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 44755200

約数和(自身を除く): 25241862

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 73, 78, 138, 146, 149, 219, 298, 299, 438, 447, 598, 894, 897, 949, 1679, 1794, 1898, 1937, 2847, 3358, 3427, 3874, 5037, 5694, 5811, 6854, 10074, 10281, 10877, 11622, 20562, 21754, 21827, 32631, 43654, 44551, 65262, 65481, 89102, 130962, 133653, 141401, 250171, 267306, 282802, 424203, 500342, 750513, 848406, 1501026, 3252223, 6504446, 9756669, 19513338]

約数ペア:

[(1, 19513338), (2, 9756669), (3, 6504446), (6, 3252223), (13, 1501026), (23, 848406), (26, 750513), (39, 500342), (46, 424203), (69, 282802), (73, 267306), (78, 250171), (138, 141401), (146, 133653), (149, 130962), (219, 89102), (298, 65481), (299, 65262), (438, 44551), (447, 43654), (598, 32631), (894, 21827), (897, 21754), (949, 20562), (1679, 11622), (1794, 10877), (1898, 10281), (1937, 10074), (2847, 6854), (3358, 5811), (3427, 5694), (3874, 5037)]