21887054

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:153

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 20137906

約数列:

[1, 2, 7, 14, 29, 31, 37, 47, 58, 62, 74, 94, 203, 217, 259, 329, 406, 434, 518, 658, 899, 1073, 1147, 1363, 1457, 1739, 1798, 2146, 2294, 2726, 2914, 3478, 6293, 7511, 8029, 9541, 10199, 12173, 12586, 15022, 16058, 19082, 20398, 24346, 33263, 42253, 50431, 53909, 66526, 84506, 100862, 107818, 232841, 295771, 353017, 377363, 465682, 591542, 706034, 754726, 1563361, 3126722, 10943527, 21887054]

約数ペア:

[(1, 21887054), (2, 10943527), (7, 3126722), (14, 1563361), (29, 754726), (31, 706034), (37, 591542), (47, 465682), (58, 377363), (62, 353017), (74, 295771), (94, 232841), (203, 107818), (217, 100862), (259, 84506), (329, 66526), (406, 53909), (434, 50431), (518, 42253), (658, 33263), (899, 24346), (1073, 20398), (1147, 19082), (1363, 16058), (1457, 15022), (1739, 12586), (1798, 12173), (2146, 10199), (2294, 9541), (2726, 8029), (2914, 7511), (3478, 6293)]