21220884

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 55648320

約数和(自身を除く): 34427436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 97, 103, 118, 177, 194, 206, 236, 291, 309, 354, 388, 412, 531, 582, 618, 708, 873, 927, 1062, 1164, 1236, 1746, 1854, 2124, 3492, 3708, 5723, 6077, 9991, 11446, 12154, 17169, 18231, 19982, 22892, 24308, 29973, 34338, 36462, 39964, 51507, 54693, 59946, 68676, 72924, 89919, 103014, 109386, 119892, 179838, 206028, 218772, 359676, 589469, 1178938, 1768407, 2357876, 3536814, 5305221, 7073628, 10610442, 21220884]

約数ペア:

[(1, 21220884), (2, 10610442), (3, 7073628), (4, 5305221), (6, 3536814), (9, 2357876), (12, 1768407), (18, 1178938), (36, 589469), (59, 359676), (97, 218772), (103, 206028), (118, 179838), (177, 119892), (194, 109386), (206, 103014), (236, 89919), (291, 72924), (309, 68676), (354, 59946), (388, 54693), (412, 51507), (531, 39964), (582, 36462), (618, 34338), (708, 29973), (873, 24308), (927, 22892), (1062, 19982), (1164, 18231), (1236, 17169), (1746, 12154), (1854, 11446), (2124, 9991), (3492, 6077), (3708, 5723)]