20221684

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 21912716

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 131, 148, 149, 259, 262, 298, 518, 524, 596, 917, 1036, 1043, 1834, 2086, 3668, 4172, 4847, 5513, 9694, 11026, 19388, 19519, 22052, 33929, 38591, 39038, 67858, 77182, 78076, 135716, 136633, 154364, 273266, 546532, 722203, 1444406, 2888812, 5055421, 10110842, 20221684]

約数ペア:

[(1, 20221684), (2, 10110842), (4, 5055421), (7, 2888812), (14, 1444406), (28, 722203), (37, 546532), (74, 273266), (131, 154364), (148, 136633), (149, 135716), (259, 78076), (262, 77182), (298, 67858), (518, 39038), (524, 38591), (596, 33929), (917, 22052), (1036, 19519), (1043, 19388), (1834, 11026), (2086, 9694), (3668, 5513), (4172, 4847)]