20661018

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1571

約数の個数: 64

約数和(自身を含む): 52669440

約数和(自身を除く): 32008422

約数列:

[1, 2, 3, 6, 7, 14, 17, 19, 21, 34, 38, 42, 51, 57, 102, 114, 119, 133, 238, 266, 323, 357, 399, 646, 714, 798, 969, 1523, 1938, 2261, 3046, 4522, 4569, 6783, 9138, 10661, 13566, 21322, 25891, 28937, 31983, 51782, 57874, 63966, 77673, 86811, 155346, 173622, 181237, 202559, 362474, 405118, 491929, 543711, 607677, 983858, 1087422, 1215354, 1475787, 2951574, 3443503, 6887006, 10330509, 20661018]

約数ペア:

[(1, 20661018), (2, 10330509), (3, 6887006), (6, 3443503), (7, 2951574), (14, 1475787), (17, 1215354), (19, 1087422), (21, 983858), (34, 607677), (38, 543711), (42, 491929), (51, 405118), (57, 362474), (102, 202559), (114, 181237), (119, 173622), (133, 155346), (238, 86811), (266, 77673), (323, 63966), (357, 57874), (399, 51782), (646, 31983), (714, 28937), (798, 25891), (969, 21322), (1523, 13566), (1938, 10661), (2261, 9138), (3046, 6783), (4522, 4569)]