20165706

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1997}}^1$

素因数の和:2036

約数の個数: 64

約数和(自身を含む): 51788160

約数和(自身を除く): 31622454

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 22, 27, 33, 34, 51, 54, 66, 99, 102, 153, 187, 198, 297, 306, 374, 459, 561, 594, 918, 1122, 1683, 1997, 3366, 3994, 5049, 5991, 10098, 11982, 17973, 21967, 33949, 35946, 43934, 53919, 65901, 67898, 101847, 107838, 131802, 197703, 203694, 305541, 373439, 395406, 593109, 611082, 746878, 916623, 1120317, 1186218, 1833246, 2240634, 3360951, 6721902, 10082853, 20165706]

約数ペア:

[(1, 20165706), (2, 10082853), (3, 6721902), (6, 3360951), (9, 2240634), (11, 1833246), (17, 1186218), (18, 1120317), (22, 916623), (27, 746878), (33, 611082), (34, 593109), (51, 395406), (54, 373439), (66, 305541), (99, 203694), (102, 197703), (153, 131802), (187, 107838), (198, 101847), (297, 67898), (306, 65901), (374, 53919), (459, 43934), (561, 35946), (594, 33949), (918, 21967), (1122, 17973), (1683, 11982), (1997, 10098), (3366, 5991), (3994, 5049)]