19663371

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 17108469

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 53, 63, 91, 117, 151, 159, 189, 273, 351, 371, 453, 477, 689, 819, 1057, 1113, 1359, 1431, 1963, 2067, 2457, 3171, 3339, 4077, 4823, 5889, 6201, 8003, 9513, 10017, 13741, 14469, 17667, 18603, 24009, 28539, 41223, 43407, 53001, 56021, 72027, 104039, 123669, 130221, 168063, 216081, 312117, 371007, 504189, 728273, 936351, 1512567, 2184819, 2809053, 6554457, 19663371]

約数ペア:

[(1, 19663371), (3, 6554457), (7, 2809053), (9, 2184819), (13, 1512567), (21, 936351), (27, 728273), (39, 504189), (53, 371007), (63, 312117), (91, 216081), (117, 168063), (151, 130221), (159, 123669), (189, 104039), (273, 72027), (351, 56021), (371, 53001), (453, 43407), (477, 41223), (689, 28539), (819, 24009), (1057, 18603), (1113, 17667), (1359, 14469), (1431, 13741), (1963, 10017), (2067, 9513), (2457, 8003), (3171, 6201), (3339, 5889), (4077, 4823)]