19710873

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{587}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 35957376

約数和(自身を除く): 16246503

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 63, 91, 117, 123, 273, 287, 369, 533, 587, 819, 861, 1599, 1761, 2583, 3731, 4109, 4797, 5283, 7631, 11193, 12327, 22893, 24067, 33579, 36981, 53417, 68679, 72201, 160251, 168469, 216603, 312871, 480753, 505407, 938613, 1516221, 2190097, 2815839, 6570291, 19710873]

約数ペア:

[(1, 19710873), (3, 6570291), (7, 2815839), (9, 2190097), (13, 1516221), (21, 938613), (39, 505407), (41, 480753), (63, 312871), (91, 216603), (117, 168469), (123, 160251), (273, 72201), (287, 68679), (369, 53417), (533, 36981), (587, 33579), (819, 24067), (861, 22893), (1599, 12327), (1761, 11193), (2583, 7631), (3731, 5283), (4109, 4797)]