1688894193

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{449}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 2731622400

約数和(自身を除く): 1042728207

約数列:

[1, 3, 7, 21, 37, 47, 103, 111, 141, 259, 309, 329, 449, 721, 777, 987, 1347, 1739, 2163, 3143, 3811, 4841, 5217, 9429, 11433, 12173, 14523, 16613, 21103, 26677, 33887, 36519, 46247, 49839, 63309, 80031, 101661, 116291, 138741, 147721, 179117, 323729, 348873, 443163, 537351, 780811, 971187, 1253819, 1711139, 2173609, 2342433, 3761457, 5133417, 5465677, 6520827, 11977973, 15215263, 16397031, 35933919, 45645789, 80423533, 241270599, 562964731, 1688894193]

約数ペア:

[(1, 1688894193), (3, 562964731), (7, 241270599), (21, 80423533), (37, 45645789), (47, 35933919), (103, 16397031), (111, 15215263), (141, 11977973), (259, 6520827), (309, 5465677), (329, 5133417), (449, 3761457), (721, 2342433), (777, 2173609), (987, 1711139), (1347, 1253819), (1739, 971187), (2163, 780811), (3143, 537351), (3811, 443163), (4841, 348873), (5217, 323729), (9429, 179117), (11433, 147721), (12173, 138741), (14523, 116291), (16613, 101661), (21103, 80031), (26677, 63309), (33887, 49839), (36519, 46247)]