21537186

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 49268736

約数和(自身を除く): 27731550

約数列:

[1, 2, 3, 6, 11, 22, 33, 47, 53, 66, 94, 106, 131, 141, 159, 262, 282, 318, 393, 517, 583, 786, 1034, 1166, 1441, 1551, 1749, 2491, 2882, 3102, 3498, 4323, 4982, 6157, 6943, 7473, 8646, 12314, 13886, 14946, 18471, 20829, 27401, 36942, 41658, 54802, 67727, 76373, 82203, 135454, 152746, 164406, 203181, 229119, 326321, 406362, 458238, 652642, 978963, 1957926, 3589531, 7179062, 10768593, 21537186]

約数ペア:

[(1, 21537186), (2, 10768593), (3, 7179062), (6, 3589531), (11, 1957926), (22, 978963), (33, 652642), (47, 458238), (53, 406362), (66, 326321), (94, 229119), (106, 203181), (131, 164406), (141, 152746), (159, 135454), (262, 82203), (282, 76373), (318, 67727), (393, 54802), (517, 41658), (583, 36942), (786, 27401), (1034, 20829), (1166, 18471), (1441, 14946), (1551, 13886), (1749, 12314), (2491, 8646), (2882, 7473), (3102, 6943), (3498, 6157), (4323, 4982)]